77130713 has 16 divisors (see below), whose sum is σ = 86489856. Its totient is φ = 68183040.

The previous prime is 77130701. The next prime is 77130727. The reversal of 77130713 is 31703177.

It is a happy number.

It is not a de Polignac number, because 77130713 - 2⁸ = 77130457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77130733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99395 + ... + 100167.

It is an arithmetic number, because the mean of its divisors is an integer number (5405616).

Almost surely, 2^77130713 is an apocalyptic number.

It is an amenable number.

77130713 is a deficient number, since it is larger than the sum of its proper divisors (9359143).

77130713 is a wasteful number, since it uses less digits than its factorization.

77130713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024.

The product of its (nonzero) digits is 3087, while the sum is 29.

The square root of 77130713 is about 8782.4092935823. The cubic root of 77130713 is about 425.6726842038.

The spelling of 77130713 in words is "seventy-seven million, one hundred thirty thousand, seven hundred thirteen".