77311994 has 8 divisors (see below), whose sum is σ = 117052128. Its totient is φ = 38294620.

The previous prime is 77311987. The next prime is 77312017. The reversal of 77311994 is 49911377.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 180422 + ... + 180849.

It is an arithmetic number, because the mean of its divisors is an integer number (14631516).

Almost surely, 2^77311994 is an apocalyptic number.

77311994 is a deficient number, since it is larger than the sum of its proper divisors (39740134).

77311994 is a wasteful number, since it uses less digits than its factorization.

77311994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361380.

The product of its digits is 47628, while the sum is 41.

The square root of 77311994 is about 8792.7239237906. The cubic root of 77311994 is about 426.0059107088.

The spelling of 77311994 in words is "seventy-seven million, three hundred eleven thousand, nine hundred ninety-four".