77760044 has 12 divisors (see below), whose sum is σ = 137720184. Its totient is φ = 38411424.

The previous prime is 77760031. The next prime is 77760061. The reversal of 77760044 is 44006777.

It is a junction number, because it is equal to n+sod(n) for n = 77759986 and 77760013.

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, 116777 + ... + 117440.

It is an arithmetic number, because the mean of its divisors is an integer number (11476682).

Almost surely, 2^77760044 is an apocalyptic number.

It is an amenable number.

77760044 is a deficient number, since it is larger than the sum of its proper divisors (59960140).

77760044 is a wasteful number, since it uses less digits than its factorization.

77760044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234304 (or 234302 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 77760044 is about 8818.1655688698. The cubic root of 77760044 is about 426.8272770446.

The spelling of 77760044 in words is "seventy-seven million, seven hundred sixty thousand, forty-four".