91516752 has 30 divisors (see below), whose sum is σ = 256120202. Its totient is φ = 30505536.

The previous prime is 91516741. The next prime is 91516757. The reversal of 91516752 is 25761519.

91516752 is a `hidden beast` number, since 91 + 516 + 7 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91470096 + 46656 = 9564^2 + 216^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91516757) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317623 + ... + 317910.

Almost surely, 2^91516752 is an apocalyptic number.

It is an amenable number.

91516752 is an abundant number, since it is smaller than the sum of its proper divisors (164603450).

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

91516752 is a wasteful number, since it uses less digits than its factorization.

91516752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635547 (or 635538 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 91516752 is about 9566.4388358469. The cubic root of 91516752 is about 450.6439373634.

The spelling of 91516752 in words is "ninety-one million, five hundred sixteen thousand, seven hundred fifty-two".