712813 has 4 divisors (see below), whose sum is σ = 723520. Its totient is φ = 702108.

The previous prime is 712807. The next prime is 712819. The reversal of 712813 is 318217.

712813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 318217 = 29 ⋅10973.

It is an interprime number because it is at equal distance from previous prime (712807) and next prime (712819).

It is a cyclic number.

It is not a de Polignac number, because 712813 - 2⁵ = 712781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712819) 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, 5253 + ... + 5386.

It is an arithmetic number, because the mean of its divisors is an integer number (180880).

2⁷¹²⁸¹³ is an apocalyptic number.

It is an amenable number.

712813 is a deficient number, since it is larger than the sum of its proper divisors (10707).

712813 is a wasteful number, since it uses less digits than its factorization.

712813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706.

The product of its digits is 336, while the sum is 22.

The square root of 712813 is about 844.2825356479. The cubic root of 712813 is about 89.3288762287.

The spelling of 712813 in words is "seven hundred twelve thousand, eight hundred thirteen".