77674728 has 16 divisors (see below), whose sum is σ = 194186880. Its totient is φ = 25891568.

The previous prime is 77674699. The next prime is 77674741. The reversal of 77674728 is 82747677.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618200 + ... + 1618247.

It is an arithmetic number, because the mean of its divisors is an integer number (12136680).

Almost surely, 2^77674728 is an apocalyptic number.

It is an amenable number.

77674728 is an abundant number, since it is smaller than the sum of its proper divisors (116512152).

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

77674728 is a wasteful number, since it uses less digits than its factorization.

77674728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236456 (or 3236452 counting only the distinct ones).

The product of its digits is 921984, while the sum is 48.

The square root of 77674728 is about 8813.3267271786. The cubic root of 77674728 is about 426.6711192027.

The spelling of 77674728 in words is "seventy-seven million, six hundred seventy-four thousand, seven hundred twenty-eight".