97689966 has 32 divisors (see below), whose sum is σ = 214358400. Its totient is φ = 29434080.

The previous prime is 97689881. The next prime is 97689979. The reversal of 97689966 is 66998679.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7680 + ... + 15948.

It is an arithmetic number, because the mean of its divisors is an integer number (6698700).

Almost surely, 2^97689966 is an apocalyptic number.

97689966 is an abundant number, since it is smaller than the sum of its proper divisors (116668434).

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

97689966 is a wasteful number, since it uses less digits than its factorization.

97689966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464.

The product of its digits is 8817984, while the sum is 60.

The square root of 97689966 is about 9883.8234504669. The cubic root of 97689966 is about 460.5569278427.

The spelling of 97689966 in words is "ninety-seven million, six hundred eighty-nine thousand, nine hundred sixty-six".