91950564 has 24 divisors (see below), whose sum is σ = 216121248. Its totient is φ = 30425920.

The previous prime is 91950559. The next prime is 91950583. The reversal of 91950564 is 46505919.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26322 + ... + 29609.

It is an arithmetic number, because the mean of its divisors is an integer number (9005052).

Almost surely, 2^91950564 is an apocalyptic number.

It is an amenable number.

91950564 is an abundant number, since it is smaller than the sum of its proper divisors (124170684).

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

91950564 is a wasteful number, since it uses less digits than its factorization.

91950564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56075 (or 56073 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 91950564 is about 9589.0856706987. The cubic root of 91950564 is about 451.3548697214.

The spelling of 91950564 in words is "ninety-one million, nine hundred fifty thousand, five hundred sixty-four".