76630638 has 16 divisors (see below), whose sum is σ = 175155840. Its totient is φ = 21894456.

The previous prime is 76630627. The next prime is 76630639. The reversal of 76630638 is 83603667.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 76630596 and 76630605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76630639) 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, 912228 + ... + 912311.

It is an arithmetic number, because the mean of its divisors is an integer number (10947240).

Almost surely, 2^76630638 is an apocalyptic number.

76630638 is an abundant number, since it is smaller than the sum of its proper divisors (98525202).

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

76630638 is a wasteful number, since it uses less digits than its factorization.

76630638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824551.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 76630638 is about 8753.8927340926. The cubic root of 76630638 is about 424.7507428851.

The spelling of 76630638 in words is "seventy-six million, six hundred thirty thousand, six hundred thirty-eight".