77664614 has 8 divisors (see below), whose sum is σ = 116534808. Its totient is φ = 38819680.

The previous prime is 77664607. The next prime is 77664623. The reversal of 77664614 is 41646677.

It is a happy number.

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

It is a congruent number.

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, 6929 + ... + 14259.

It is an arithmetic number, because the mean of its divisors is an integer number (14566851).

Almost surely, 2^77664614 is an apocalyptic number.

77664614 is a deficient number, since it is larger than the sum of its proper divisors (38870194).

77664614 is a wasteful number, since it uses less digits than its factorization.

77664614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12630.

The product of its digits is 169344, while the sum is 41.

The square root of 77664614 is about 8812.7529183564. The cubic root of 77664614 is about 426.6525994982.

The spelling of 77664614 in words is "seventy-seven million, six hundred sixty-four thousand, six hundred fourteen".