91982656 has 14 divisors (see below), whose sum is σ = 182528210. Its totient is φ = 45991296.

The previous prime is 91982609. The next prime is 91982663. The reversal of 91982656 is 65628919.

It can be written as a sum of positive squares in only one way, i.e., 91853056 + 129600 = 9584^2 + 360^2 .

It is a congruent number.

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, 718551 + ... + 718678.

Almost surely, 2^91982656 is an apocalyptic number.

It is an amenable number.

91982656 is a deficient number, since it is larger than the sum of its proper divisors (90545554).

91982656 is a wasteful number, since it uses less digits than its factorization.

91982656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437241 (or 1437231 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 91982656 is about 9590.7588855106. The cubic root of 91982656 is about 451.4073732807.

The spelling of 91982656 in words is "ninety-one million, nine hundred eighty-two thousand, six hundred fifty-six".