76638922 has 16 divisors (see below), whose sum is σ = 118532232. Its totient is φ = 37140480.

The previous prime is 76638911. The next prime is 76638923. The reversal of 76638922 is 22983667.

It can be written as a sum of positive squares in 4 ways, for example, as 14055001 + 62583921 = 3749^2 + 7911^2 .

It is not an unprimeable number, because it can be changed into a prime (76638923) 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, 9898 + ... + 15850.

Almost surely, 2^76638922 is an apocalyptic number.

76638922 is a deficient number, since it is larger than the sum of its proper divisors (41893310).

76638922 is a wasteful number, since it uses less digits than its factorization.

76638922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153.

The product of its digits is 217728, while the sum is 43.

The square root of 76638922 is about 8754.3658822327. The cubic root of 76638922 is about 424.7660479400.

The spelling of 76638922 in words is "seventy-six million, six hundred thirty-eight thousand, nine hundred twenty-two".