77570713 has 4 divisors (see below), whose sum is σ = 84622608. Its totient is φ = 70518820.

The previous prime is 77570707. The next prime is 77570761. The reversal of 77570713 is 31707577.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77570713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77570413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525931 + ... + 3525952.

It is an arithmetic number, because the mean of its divisors is an integer number (21155652).

Almost surely, 2^77570713 is an apocalyptic number.

It is an amenable number.

77570713 is a deficient number, since it is larger than the sum of its proper divisors (7051895).

77570713 is a wasteful number, since it uses less digits than its factorization.

77570713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051894.

The product of its (nonzero) digits is 36015, while the sum is 37.

The square root of 77570713 is about 8807.4237436381. The cubic root of 77570713 is about 426.4805809485.

The spelling of 77570713 in words is "seventy-seven million, five hundred seventy thousand, seven hundred thirteen".