320613717 has 8 divisors (see below), whose sum is σ = 427591296. Its totient is φ = 213689312.

The previous prime is 320613707. The next prime is 320613731. The reversal of 320613717 is 717316023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320613717 - 2⁴ = 320613701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320613707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988 + ... + 25634.

It is an arithmetic number, because the mean of its divisors is an integer number (53448912).

Almost surely, 2^320613717 is an apocalyptic number.

It is an amenable number.

320613717 is a deficient number, since it is larger than the sum of its proper divisors (106977579).

320613717 is a wasteful number, since it uses less digits than its factorization.

320613717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26587.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 320613717 is about 17905.6895147883. The cubic root of 320613717 is about 684.4273666399.

It can be divided in two parts, 32061 and 3717, that added together give a triangular number (35778 = T₂₆₇).

The spelling of 320613717 in words is "three hundred twenty million, six hundred thirteen thousand, seven hundred seventeen".