765713 has 4 divisors (see below), whose sum is σ = 824628. Its totient is φ = 706800.

The previous prime is 765707. The next prime is 765727. The reversal of 765713 is 317567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317567 = 541 ⋅587.

It can be written as a sum of positive squares in 2 ways, for example, as 71824 + 693889 = 268^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 765713 - 2⁶ = 765649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (765763) 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 3 ways as a sum of consecutive naturals, for example, 29438 + ... + 29463.

It is an arithmetic number, because the mean of its divisors is an integer number (206157).

2⁷⁶⁵⁷¹³ is an apocalyptic number.

It is an amenable number.

765713 is a deficient number, since it is larger than the sum of its proper divisors (58915).

765713 is a wasteful number, since it uses less digits than its factorization.

765713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58914.

The product of its digits is 4410, while the sum is 29.

The square root of 765713 is about 875.0502842694. The cubic root of 765713 is about 91.4861475839.

The spelling of 765713 in words is "seven hundred sixty-five thousand, seven hundred thirteen".