76312638 has 32 divisors (see below), whose sum is σ = 175057920. Its totient is φ = 24616440.

The previous prime is 76312637. The next prime is 76312661. The reversal of 76312638 is 83621367.

It is a happy number.

76312638 is a `hidden beast` number, since 7 + 6 + 3 + 12 + 638 = 666.

It is a super-3 number, since 3×76312638³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76312637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21120 + ... + 24467.

It is an arithmetic number, because the mean of its divisors is an integer number (5470560).

Almost surely, 2^76312638 is an apocalyptic number.

76312638 is an abundant number, since it is smaller than the sum of its proper divisors (98745282).

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

76312638 is a wasteful number, since it uses less digits than its factorization.

76312638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45629 (or 45623 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 76312638 is about 8735.7105034450. The cubic root of 76312638 is about 424.1623881074.

The spelling of 76312638 in words is "seventy-six million, three hundred twelve thousand, six hundred thirty-eight".