320879537 has 12 divisors (see below), whose sum is σ = 353877888. Its totient is φ = 290736600.

The previous prime is 320879521. The next prime is 320879557. The reversal of 320879537 is 735978023.

It is not a de Polignac number, because 320879537 - 2⁴ = 320879521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320879557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33368 + ... + 41894.

It is an arithmetic number, because the mean of its divisors is an integer number (29489824).

Almost surely, 2^320879537 is an apocalyptic number.

It is an amenable number.

320879537 is a deficient number, since it is larger than the sum of its proper divisors (32998351).

320879537 is a wasteful number, since it uses less digits than its factorization.

320879537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8860 (or 8849 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 320879537 is about 17913.1107572080. The cubic root of 320879537 is about 684.6164667061.

The spelling of 320879537 in words is "three hundred twenty million, eight hundred seventy-nine thousand, five hundred thirty-seven".