320479753 has 6 divisors (see below), whose sum is σ = 352263002. Its totient is φ = 291345120.

The previous prime is 320479741. The next prime is 320479763. The reversal of 320479753 is 357974023.

It can be written as a sum of positive squares in only one way, i.e., 262537209 + 57942544 = 16203^2 + 7612^2 .

It is a de Polignac number, because none of the positive numbers 2^k-320479753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320479763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1324176 + ... + 1324417.

Almost surely, 2^320479753 is an apocalyptic number.

It is an amenable number.

320479753 is a deficient number, since it is larger than the sum of its proper divisors (31783249).

320479753 is a wasteful number, since it uses less digits than its factorization.

320479753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648615 (or 2648604 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 320479753 is about 17901.9483017911. The cubic root of 320479753 is about 684.3320271955.

The spelling of 320479753 in words is "three hundred twenty million, four hundred seventy-nine thousand, seven hundred fifty-three".