91049504 has 48 divisors (see below), whose sum is σ = 220627008. Its totient is φ = 36018432.

The previous prime is 91049461. The next prime is 91049507. The reversal of 91049504 is 40594019.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (91049507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12722 + ... + 18545.

It is an arithmetic number, because the mean of its divisors is an integer number (4596396).

Almost surely, 2^91049504 is an apocalyptic number.

It is an amenable number.

91049504 is an abundant number, since it is smaller than the sum of its proper divisors (129577504).

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

91049504 is a wasteful number, since it uses less digits than its factorization.

91049504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31297 (or 31289 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 91049504 is about 9541.9863760121. The cubic root of 91049504 is about 449.8756924135.

The spelling of 91049504 in words is "ninety-one million, forty-nine thousand, five hundred four".