9967556 has 12 divisors (see below), whose sum is σ = 18201792. Its totient is φ = 4767048.

The previous prime is 9967549. The next prime is 9967597. The reversal of 9967556 is 6557699.

It is a super-2 number, since 2×9967556² = 198704345226272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9967556.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54080 + ... + 54263.

It is an arithmetic number, because the mean of its divisors is an integer number (1516816).

Almost surely, 2^9967556 is an apocalyptic number.

It is an amenable number.

9967556 is a deficient number, since it is larger than the sum of its proper divisors (8234236).

9967556 is a wasteful number, since it uses less digits than its factorization.

9967556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108370 (or 108368 counting only the distinct ones).

The product of its digits is 510300, while the sum is 47.

The square root of 9967556 is about 3157.1436457659. The cubic root of 9967556 is about 215.2102216415.

The spelling of 9967556 in words is "nine million, nine hundred sixty-seven thousand, five hundred fifty-six".