77344713 has 42 divisors (see below), whose sum is σ = 124359354. Its totient is φ = 47915712.

The previous prime is 77344703. The next prime is 77344723. The reversal of 77344713 is 31744377.

It is an interprime number because it is at equal distance from previous prime (77344703) and next prime (77344723).

It can be written as a sum of positive squares in only one way, i.e., 72795024 + 4549689 = 8532^2 + 2133^2 .

It is not a de Polignac number, because 77344713 - 2⁴ = 77344697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77344703) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 979008 + ... + 979086.

It is an arithmetic number, because the mean of its divisors is an integer number (2960937).

Almost surely, 2^77344713 is an apocalyptic number.

It is an amenable number.

77344713 is a deficient number, since it is larger than the sum of its proper divisors (47014641).

77344713 is an frugal number, since it uses more digits than its factorization.

77344713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 99 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 77344713 is about 8794.5842994425. The cubic root of 77344713 is about 426.0659985030.

The spelling of 77344713 in words is "seventy-seven million, three hundred forty-four thousand, seven hundred thirteen".