76920668 has 18 divisors (see below), whose sum is σ = 147961968. Its totient is φ = 34963720.

The previous prime is 76920661. The next prime is 76920677. The reversal of 76920668 is 86602967.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76920661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78980 + ... + 79947.

Almost surely, 2^76920668 is an apocalyptic number.

It is an amenable number.

76920668 is a deficient number, since it is larger than the sum of its proper divisors (71041300).

76920668 is a wasteful number, since it uses less digits than its factorization.

76920668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158953 (or 158940 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 76920668 is about 8770.4428622505. The cubic root of 76920668 is about 425.2859307722.

The spelling of 76920668 in words is "seventy-six million, nine hundred twenty thousand, six hundred sixty-eight".