91564362 has 12 divisors (see below), whose sum is σ = 198389490. Its totient is φ = 30521448.

The previous prime is 91564349. The next prime is 91564373. The reversal of 91564362 is 26346519.

It is a happy number.

91564362 is a `hidden beast` number, since 9 + 1 + 5 + 643 + 6 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65950641 + 25613721 = 8121^2 + 5061^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 2543437 + ... + 2543472.

Almost surely, 2^91564362 is an apocalyptic number.

91564362 is an abundant number, since it is smaller than the sum of its proper divisors (106825128).

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

91564362 is a wasteful number, since it uses less digits than its factorization.

91564362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086917 (or 5086914 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 91564362 is about 9568.9268990833. The cubic root of 91564362 is about 450.7220703752.

It can be divided in two parts, 91 and 564362, that added together give a triangular number (564453 = T₁₀₆₂).

The spelling of 91564362 in words is "ninety-one million, five hundred sixty-four thousand, three hundred sixty-two".