76921016 has 32 divisors (see below), whose sum is σ = 151943040. Its totient is φ = 36435168.

The previous prime is 76920983. The next prime is 76921027. The reversal of 76921016 is 61012967.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

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 7 ways as a sum of consecutive naturals, for example, 17735 + ... + 21641.

It is an arithmetic number, because the mean of its divisors is an integer number (4748220).

Almost surely, 2^76921016 is an apocalyptic number.

It is an amenable number.

76921016 is a deficient number, since it is larger than the sum of its proper divisors (75022024).

76921016 is a wasteful number, since it uses less digits than its factorization.

76921016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043 (or 4039 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 76921016 is about 8770.4627015911. The cubic root of 76921016 is about 425.2865721225.

The spelling of 76921016 in words is "seventy-six million, nine hundred twenty-one thousand, sixteen".