320715207 has 30 divisors (see below), whose sum is σ = 486399672. Its totient is φ = 210597408.

The previous prime is 320715179. The next prime is 320715233. The reversal of 320715207 is 702517023.

It is not a de Polignac number, because 320715207 - 2¹⁴ = 320698823 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320715277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 431278 + ... + 432020.

Almost surely, 2^320715207 is an apocalyptic number.

320715207 is a deficient number, since it is larger than the sum of its proper divisors (165684465).

320715207 is an frugal number, since it uses more digits than its factorization.

320715207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 320715207 is about 17908.5233059569. The cubic root of 320715207 is about 684.4995773217.

The spelling of 320715207 in words is "three hundred twenty million, seven hundred fifteen thousand, two hundred seven".