77134516 has 6 divisors (see below), whose sum is σ = 134985410. Its totient is φ = 38567256.

The previous prime is 77134513. The next prime is 77134517. The reversal of 77134516 is 61543177.

It can be written as a sum of positive squares in only one way, i.e., 71470116 + 5664400 = 8454^2 + 2380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77134513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9641811 + ... + 9641818.

Almost surely, 2^77134516 is an apocalyptic number.

It is an amenable number.

77134516 is a deficient number, since it is larger than the sum of its proper divisors (57850894).

77134516 is a wasteful number, since it uses less digits than its factorization.

77134516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19283633 (or 19283631 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 77134516 is about 8782.6258032550. The cubic root of 77134516 is about 425.6796801486.

The spelling of 77134516 in words is "seventy-seven million, one hundred thirty-four thousand, five hundred sixteen".