9556972398 has 12 divisors (see below), whose sum is σ = 20706773568. Its totient is φ = 3185657460.

The previous prime is 9556972333. The next prime is 9556972409. The reversal of 9556972398 is 8932796559.

9556972398 is a `hidden beast` number, since 9 + 556 + 9 + 72 + 3 + 9 + 8 = 666.

It is a super-2 number, since 2×9556972398² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265471438 + ... + 265471473.

It is an arithmetic number, because the mean of its divisors is an integer number (1725564464).

Almost surely, 2^9556972398 is an apocalyptic number.

9556972398 is an abundant number, since it is smaller than the sum of its proper divisors (11149801170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9556972398 is a wasteful number, since it uses less digits than its factorization.

9556972398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530942919 (or 530942916 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 63.

The square root of 9556972398 is about 97759.7688111014. The cubic root of 9556972398 is about 2122.1371291738.

The spelling of 9556972398 in words is "nine billion, five hundred fifty-six million, nine hundred seventy-two thousand, three hundred ninety-eight".