91628376 has 64 divisors (see below), whose sum is σ = 262560000. Its totient is φ = 26103168.

The previous prime is 91628363. The next prime is 91628417. The reversal of 91628376 is 67382619.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 83286 + ... + 84378.

It is an arithmetic number, because the mean of its divisors is an integer number (4102500).

Almost surely, 2^91628376 is an apocalyptic number.

It is an amenable number.

91628376 is an abundant number, since it is smaller than the sum of its proper divisors (170931624).

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

91628376 is a wasteful number, since it uses less digits than its factorization.

91628376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1604 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 91628376 is about 9572.2712038471. The cubic root of 91628376 is about 450.8270813964.

It can be divided in two parts, 916 and 28376, that added together give a palindrome (29292).

The spelling of 91628376 in words is "ninety-one million, six hundred twenty-eight thousand, three hundred seventy-six".