91655968 has 12 divisors (see below), whose sum is σ = 180447750. Its totient is φ = 45827968.

The previous prime is 91655957. The next prime is 91656007. The reversal of 91655968 is 86955619.

It can be written as a sum of positive squares in only one way, i.e., 79067664 + 12588304 = 8892^2 + 3548^2 .

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 as a sum of consecutive naturals, namely, 1432093 + ... + 1432156.

Almost surely, 2^91655968 is an apocalyptic number.

It is an amenable number.

91655968 is a deficient number, since it is larger than the sum of its proper divisors (88791782).

91655968 is a wasteful number, since it uses less digits than its factorization.

91655968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864259 (or 2864251 counting only the distinct ones).

The product of its digits is 583200, while the sum is 49.

The square root of 91655968 is about 9573.7123416155. The cubic root of 91655968 is about 450.8723292879.

The spelling of 91655968 in words is "ninety-one million, six hundred fifty-five thousand, nine hundred sixty-eight".