713506813 has 16 divisors (see below), whose sum is σ = 771419376. Its totient is φ = 657469440.

The previous prime is 713506799. The next prime is 713506831. The reversal of 713506813 is 318605317.

It can be written as a sum of positive squares in 8 ways, for example, as 14538969 + 698967844 = 3813^2 + 26438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-713506813 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 (713506873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240145 + ... + 243097.

It is an arithmetic number, because the mean of its divisors is an integer number (48213711).

Almost surely, 2^713506813 is an apocalyptic number.

It is an amenable number.

713506813 is a deficient number, since it is larger than the sum of its proper divisors (57912563).

713506813 is a wasteful number, since it uses less digits than its factorization.

713506813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 713506813 is about 26711.5483078013. The cubic root of 713506813 is about 893.5784943671.

The spelling of 713506813 in words is "seven hundred thirteen million, five hundred six thousand, eight hundred thirteen".