91376604 has 72 divisors (see below), whose sum is σ = 256314240. Its totient is φ = 27213600.

The previous prime is 91376599. The next prime is 91376617. The reversal of 91376604 is 40667319.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21409 + ... + 25319.

It is an arithmetic number, because the mean of its divisors is an integer number (3559920).

Almost surely, 2^91376604 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 91376604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128157120).

91376604 is an abundant number, since it is smaller than the sum of its proper divisors (164937636).

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

91376604 is a wasteful number, since it uses less digits than its factorization.

91376604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991 (or 3986 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 91376604 is about 9559.1110465357. Note that the first 3 decimals coincide. The cubic root of 91376604 is about 450.4137823667.

The spelling of 91376604 in words is "ninety-one million, three hundred seventy-six thousand, six hundred four".