91964562 has 16 divisors (see below), whose sum is σ = 185032512. Its totient is φ = 30470960.

The previous prime is 91964549. The next prime is 91964563. The reversal of 91964562 is 26546919.

It is a happy number.

It is a super-3 number, since 3×91964562³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (91964563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44889 + ... + 46892.

It is an arithmetic number, because the mean of its divisors is an integer number (11564532).

Almost surely, 2^91964562 is an apocalyptic number.

91964562 is an abundant number, since it is smaller than the sum of its proper divisors (93067950).

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

91964562 is a wasteful number, since it uses less digits than its factorization.

91964562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91953.

The product of its digits is 116640, while the sum is 42.

The square root of 91964562 is about 9589.8155352436. The cubic root of 91964562 is about 451.3777724081.

The spelling of 91964562 in words is "ninety-one million, nine hundred sixty-four thousand, five hundred sixty-two".