76728364 has 6 divisors (see below), whose sum is σ = 134274644. Its totient is φ = 38364180.

The previous prime is 76728359. The next prime is 76728367. The reversal of 76728364 is 46382767.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 76728364.

It is not an unprimeable number, because it can be changed into a prime (76728367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9591042 + ... + 9591049.

Almost surely, 2^76728364 is an apocalyptic number.

It is an amenable number.

76728364 is a deficient number, since it is larger than the sum of its proper divisors (57546280).

76728364 is a wasteful number, since it uses less digits than its factorization.

76728364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19182095 (or 19182093 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 76728364 is about 8759.4728151870. The cubic root of 76728364 is about 424.9312257803.

The spelling of 76728364 in words is "seventy-six million, seven hundred twenty-eight thousand, three hundred sixty-four".