9389976556 has 6 divisors (see below), whose sum is σ = 16432458980. Its totient is φ = 4694988276.

The previous prime is 9389976551. The next prime is 9389976559. The reversal of 9389976556 is 6556799839.

It is a happy number.

It is a super-2 number, since 2×9389976556² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9389976491 and 9389976500.

It is not an unprimeable number, because it can be changed into a prime (9389976551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1173747066 + ... + 1173747073.

Almost surely, 2^9389976556 is an apocalyptic number.

It is an amenable number.

9389976556 is a deficient number, since it is larger than the sum of its proper divisors (7042482424).

9389976556 is a wasteful number, since it uses less digits than its factorization.

9389976556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347494143 (or 2347494141 counting only the distinct ones).

The product of its digits is 110224800, while the sum is 67.

The square root of 9389976556 is about 96901.8913953696. The cubic root of 9389976556 is about 2109.7038851318.

The spelling of 9389976556 in words is "nine billion, three hundred eighty-nine million, nine hundred seventy-six thousand, five hundred fifty-six".