76631768 has 16 divisors (see below), whose sum is σ = 149932080. Its totient is φ = 36649888.

The previous prime is 76631749. The next prime is 76631771. The reversal of 76631768 is 86713667.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208055 + ... + 208422.

It is an arithmetic number, because the mean of its divisors is an integer number (9370755).

Almost surely, 2^76631768 is an apocalyptic number.

It is an amenable number.

76631768 is a deficient number, since it is larger than the sum of its proper divisors (73300312).

76631768 is a wasteful number, since it uses less digits than its factorization.

76631768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416506 (or 416502 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 76631768 is about 8753.9572765693. The cubic root of 76631768 is about 424.7528306749.

The spelling of 76631768 in words is "seventy-six million, six hundred thirty-one thousand, seven hundred sixty-eight".