97865028 has 36 divisors (see below), whose sum is σ = 248779440. Its totient is φ = 32437296.

The previous prime is 97865017. The next prime is 97865093. The reversal of 97865028 is 82056879.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 1150 + ... + 14037.

It is an arithmetic number, because the mean of its divisors is an integer number (6910540).

Almost surely, 2^97865028 is an apocalyptic number.

It is an amenable number.

97865028 is an abundant number, since it is smaller than the sum of its proper divisors (150914412).

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

97865028 is a wasteful number, since it uses less digits than its factorization.

97865028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15376 (or 15371 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 97865028 is about 9892.6754722876. The cubic root of 97865028 is about 460.8318721625.

The spelling of 97865028 in words is "ninety-seven million, eight hundred sixty-five thousand, twenty-eight".