713220439 has 4 divisors (see below), whose sum is σ = 722990656. Its totient is φ = 703450224.

The previous prime is 713220437. The next prime is 713220451. The reversal of 713220439 is 934022317.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 713220439 - 2¹ = 713220437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 713220439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713220437) 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, 4884999 + ... + 4885144.

It is an arithmetic number, because the mean of its divisors is an integer number (180747664).

Almost surely, 2^713220439 is an apocalyptic number.

713220439 is a deficient number, since it is larger than the sum of its proper divisors (9770217).

713220439 is an equidigital number, since it uses as much as digits as its factorization.

713220439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9770216.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 713220439 is about 26706.1872793553. The cubic root of 713220439 is about 893.4589291032.

The spelling of 713220439 in words is "seven hundred thirteen million, two hundred twenty thousand, four hundred thirty-nine".