91956328 has 8 divisors (see below), whose sum is σ = 172418130. Its totient is φ = 45978160.

The previous prime is 91956307. The next prime is 91956343. The reversal of 91956328 is 82365919.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 55980324 + 35976004 = 7482^2 + 5998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 5747263 + ... + 5747278.

Almost surely, 2^91956328 is an apocalyptic number.

It is an amenable number.

91956328 is a deficient number, since it is larger than the sum of its proper divisors (80461802).

91956328 is a wasteful number, since it uses less digits than its factorization.

91956328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11494547 (or 11494543 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 91956328 is about 9589.3862160203. The cubic root of 91956328 is about 451.3643007134.

The spelling of 91956328 in words is "ninety-one million, nine hundred fifty-six thousand, three hundred twenty-eight".