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898981 is a prime number
BaseRepresentation
bin11011011011110100101
31200200011121
43123132211
5212231411
631133541
710432636
oct3333645
91620147
10898981
11564466
123742b1
13256255
1419588d
1512b571
hexdb7a5

898981 has 2 divisors, whose sum is σ = 898982. Its totient is φ = 898980.

The previous prime is 898951. The next prime is 898987. The reversal of 898981 is 189898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497025 + 401956 = 705^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 898981 - 27 = 898853 is a prime.

It is a super-2 number, since 2×8989812 = 1616333676722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 898981.

It is not a weakly prime, because it can be changed into another prime (898987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449490 + 449491.

It is an arithmetic number, because the mean of its divisors is an integer number (449491).

2898981 is an apocalyptic number.

It is an amenable number.

898981 is a deficient number, since it is larger than the sum of its proper divisors (1).

898981 is an equidigital number, since it uses as much as digits as its factorization.

898981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 43.

The square root of 898981 is about 948.1460857906. The cubic root of 898981 is about 96.5124864153.

It can be divided in two parts, 8 and 98981, that added together give a palindrome (98989).

The spelling of 898981 in words is "eight hundred ninety-eight thousand, nine hundred eighty-one".