77764713 has 16 divisors (see below), whose sum is σ = 114682176. Its totient is φ = 46560960.

The previous prime is 77764699. The next prime is 77764723. The reversal of 77764713 is 31746777.

It is not a de Polignac number, because 77764713 - 2⁴ = 77764697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77764723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25503 + ... + 28388.

It is an arithmetic number, because the mean of its divisors is an integer number (7167636).

Almost surely, 2^77764713 is an apocalyptic number.

It is an amenable number.

77764713 is a deficient number, since it is larger than the sum of its proper divisors (36917463).

77764713 is a wasteful number, since it uses less digits than its factorization.

77764713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53944.

The product of its digits is 172872, while the sum is 42.

The square root of 77764713 is about 8818.4303024972. The cubic root of 77764713 is about 426.8358196352.

The spelling of 77764713 in words is "seventy-seven million, seven hundred sixty-four thousand, seven hundred thirteen".