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98731 is a prime number
BaseRepresentation
bin11000000110101011
312000102201
4120012223
511124411
62041031
7560563
oct300653
9160381
1098731
11681a6
1249177
1335c29
1427da3
151e3c1
hex181ab

98731 has 2 divisors, whose sum is σ = 98732. Its totient is φ = 98730.

The previous prime is 98729. The next prime is 98737. The reversal of 98731 is 13789.

It is a weak prime.

It is an emirp because it is prime and its reverse (13789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98731 - 21 = 98729 is a prime.

It is a super-2 number, since 2×987312 = 19495620722, which contains 22 as substring.

Together with 98729, it forms a pair of twin primes.

It is a Chen prime.

98731 is a lucky number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 98731.

It is not a weakly prime, because it can be changed into another prime (98737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49365 + 49366.

It is an arithmetic number, because the mean of its divisors is an integer number (49366).

298731 is an apocalyptic number.

98731 is a deficient number, since it is larger than the sum of its proper divisors (1).

98731 is an equidigital number, since it uses as much as digits as its factorization.

98731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 98731 is about 314.2148946183. The cubic root of 98731 is about 46.2187127085.

The spelling of 98731 in words is "ninety-eight thousand, seven hundred thirty-one".