77955394 has 16 divisors (see below), whose sum is σ = 128572416. Its totient is φ = 35154000.

The previous prime is 77955389. The next prime is 77955403. The reversal of 77955394 is 49355977.

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, 11157 + ... + 16744.

It is an arithmetic number, because the mean of its divisors is an integer number (8035776).

Almost surely, 2^77955394 is an apocalyptic number.

77955394 is a deficient number, since it is larger than the sum of its proper divisors (50617022).

77955394 is a wasteful number, since it uses less digits than its factorization.

77955394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28041.

The product of its digits is 1190700, while the sum is 49.

The square root of 77955394 is about 8829.2351877159. The cubic root of 77955394 is about 427.1844055395.

The spelling of 77955394 in words is "seventy-seven million, nine hundred fifty-five thousand, three hundred ninety-four".