77713007 has 4 divisors (see below), whose sum is σ = 77745720. Its totient is φ = 77680296.

The previous prime is 77712989. The next prime is 77713019. The reversal of 77713007 is 70031777.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70031777 = 19 ⋅3685883.

It is a cyclic number.

It is not a de Polignac number, because 77713007 - 2⁸ = 77712751 is a prime.

It is a super-2 number, since 2×77713007² = 12078622913964098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77713037) 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, 12488 + ... + 17645.

It is an arithmetic number, because the mean of its divisors is an integer number (19436430).

Almost surely, 2^77713007 is an apocalyptic number.

77713007 is a deficient number, since it is larger than the sum of its proper divisors (32713).

77713007 is a wasteful number, since it uses less digits than its factorization.

77713007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32712.

The product of its (nonzero) digits is 7203, while the sum is 32.

The square root of 77713007 is about 8815.4981141170. The cubic root of 77713007 is about 426.7411971717.

The spelling of 77713007 in words is "seventy-seven million, seven hundred thirteen thousand, seven".