76921628 has 48 divisors (see below), whose sum is σ = 157833984. Its totient is φ = 32123520.

The previous prime is 76921619. The next prime is 76921673. The reversal of 76921628 is 82612967.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245600 + ... + 245912.

It is an arithmetic number, because the mean of its divisors is an integer number (3288208).

Almost surely, 2^76921628 is an apocalyptic number.

It is an amenable number.

76921628 is an abundant number, since it is smaller than the sum of its proper divisors (80912356).

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

76921628 is a wasteful number, since it uses less digits than its factorization.

76921628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 520 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 76921628 is about 8770.4975913571. The cubic root of 76921628 is about 425.2877000098.

The spelling of 76921628 in words is "seventy-six million, nine hundred twenty-one thousand, six hundred twenty-eight".