77922404 has 24 divisors (see below), whose sum is σ = 156354240. Its totient is φ = 33286176.

The previous prime is 77922389. The next prime is 77922431. The reversal of 77922404 is 40422977.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4487 + ... + 13265.

It is an arithmetic number, because the mean of its divisors is an integer number (6514760).

Almost surely, 2^77922404 is an apocalyptic number.

It is an amenable number.

77922404 is an abundant number, since it is smaller than the sum of its proper divisors (78431836).

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

77922404 is a wasteful number, since it uses less digits than its factorization.

77922404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9107 (or 9105 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 77922404 is about 8827.3667647833. The cubic root of 77922404 is about 427.1241368770.

The spelling of 77922404 in words is "seventy-seven million, nine hundred twenty-two thousand, four hundred four".