77064474 has 16 divisors (see below), whose sum is σ = 154490112. Its totient is φ = 25627968.

The previous prime is 77064473. The next prime is 77064479. The reversal of 77064474 is 47446077.

It is not an unprimeable number, because it can be changed into a prime (77064473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12234 + ... + 17429.

It is an arithmetic number, because the mean of its divisors is an integer number (9655632).

Almost surely, 2^77064474 is an apocalyptic number.

77064474 is an abundant number, since it is smaller than the sum of its proper divisors (77425638).

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

77064474 is a wasteful number, since it uses less digits than its factorization.

77064474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30101.

The product of its (nonzero) digits is 131712, while the sum is 39.

The square root of 77064474 is about 8778.6373657875. The cubic root of 77064474 is about 425.5507949797.

The spelling of 77064474 in words is "seventy-seven million, sixty-four thousand, four hundred seventy-four".