898651 has 4 divisors (see below), whose sum is σ = 967792. Its totient is φ = 829512.

The previous prime is 898621. The next prime is 898661. The reversal of 898651 is 156898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 898651 - 2⁷ = 898523 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 898651.

It is not an unprimeable number, because it can be changed into a prime (898621) 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 in 3 ways as a sum of consecutive naturals, for example, 34551 + ... + 34576.

It is an arithmetic number, because the mean of its divisors is an integer number (241948).

2⁸⁹⁸⁶⁵¹ is an apocalyptic number.

898651 is a deficient number, since it is larger than the sum of its proper divisors (69141).

898651 is a wasteful number, since it uses less digits than its factorization.

898651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69140.

The product of its digits is 17280, while the sum is 37.

The square root of 898651 is about 947.9720460014. The cubic root of 898651 is about 96.5006756286.

The spelling of 898651 in words is "eight hundred ninety-eight thousand, six hundred fifty-one".