91520496 has 160 divisors (see below), whose sum is σ = 280458240. Its totient is φ = 28512000.

The previous prime is 91520479. The next prime is 91520497. The reversal of 91520496 is 69402519.

91520496 is a `hidden beast` number, since 91 + 520 + 49 + 6 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 91520496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91520497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606021 + ... + 606171.

It is an arithmetic number, because the mean of its divisors is an integer number (1752864).

Almost surely, 2^91520496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91520496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140229120).

91520496 is an abundant number, since it is smaller than the sum of its proper divisors (188937744).

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

91520496 is a wasteful number, since it uses less digits than its factorization.

91520496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 91520496 is about 9566.6345179483. The cubic root of 91520496 is about 450.6500826423.

The spelling of 91520496 in words is "ninety-one million, five hundred twenty thousand, four hundred ninety-six".