77317974 has 12 divisors (see below), whose sum is σ = 167522316. Its totient is φ = 25772652.

The previous prime is 77317967. The next prime is 77317979. The reversal of 77317974 is 47971377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77317979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2147704 + ... + 2147739.

It is an arithmetic number, because the mean of its divisors is an integer number (13960193).

Almost surely, 2^77317974 is an apocalyptic number.

77317974 is an abundant number, since it is smaller than the sum of its proper divisors (90204342).

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

77317974 is a wasteful number, since it uses less digits than its factorization.

77317974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295451 (or 4295448 counting only the distinct ones).

The product of its digits is 259308, while the sum is 45.

The square root of 77317974 is about 8793.0639711081. The cubic root of 77317974 is about 426.0168941260.

The spelling of 77317974 in words is "seventy-seven million, three hundred seventeen thousand, nine hundred seventy-four".