10398900625 has 15 divisors (see below), whose sum is σ = 12997652701. Its totient is φ = 8317081000.

The previous prime is 10398900613. The next prime is 10398900637. The reversal of 10398900625 is 52600989301.

It is a happy number.

The square root of 10398900625 is 101975.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (10398900613) and next prime (10398900637).

It can be written as a sum of positive squares in 2 ways, for example, as 815273809 + 9583626816 = 28553^2 + 97896^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10398900625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2547336 + ... + 2551414.

Almost surely, 2^10398900625 is an apocalyptic number.

10398900625 is the 101975-th square number.

10398900625 is the 50988-th centered octagonal number.

It is an amenable number.

10398900625 is a deficient number, since it is larger than the sum of its proper divisors (2598752076).

10398900625 is an frugal number, since it uses more digits than its factorization.

10398900625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8178 (or 4084 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 10398900625 in words is "ten billion, three hundred ninety-eight million, nine hundred thousand, six hundred twenty-five".