97285665 has 16 divisors (see below), whose sum is σ = 157264128. Its totient is φ = 51350016.

The previous prime is 97285649. The next prime is 97285697. The reversal of 97285665 is 56658279.

It is a happy number.

It is not a de Polignac number, because 97285665 - 2⁴ = 97285649 is a prime.

It is a super-2 number, since 2×97285665² = 18929001228984450, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 31977 + ... + 34886.

It is an arithmetic number, because the mean of its divisors is an integer number (9829008).

Almost surely, 2^97285665 is an apocalyptic number.

It is an amenable number.

97285665 is a deficient number, since it is larger than the sum of its proper divisors (59978463).

97285665 is a wasteful number, since it uses less digits than its factorization.

97285665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66968.

The product of its digits is 907200, while the sum is 48.

The square root of 97285665 is about 9863.3495831791. The cubic root of 97285665 is about 459.9206936374.

The spelling of 97285665 in words is "ninety-seven million, two hundred eighty-five thousand, six hundred sixty-five".