97666956 has 18 divisors (see below), whose sum is σ = 246880452. Its totient is φ = 32555640.

The previous prime is 97666931. The next prime is 97666963. The reversal of 97666956 is 65966679.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1356450 + ... + 1356521.

Almost surely, 2^97666956 is an apocalyptic number.

It is an amenable number.

97666956 is an abundant number, since it is smaller than the sum of its proper divisors (149213496).

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

97666956 is a wasteful number, since it uses less digits than its factorization.

97666956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712981 (or 2712976 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 97666956 is about 9882.6593586949. The cubic root of 97666956 is about 460.5207649781.

The spelling of 97666956 in words is "ninety-seven million, six hundred sixty-six thousand, nine hundred fifty-six".