320560497 has 24 divisors (see below), whose sum is σ = 481857376. Its totient is φ = 212961312.

The previous prime is 320560421. The next prime is 320560529. The reversal of 320560497 is 794065023.

320560497 is a `hidden beast` number, since 3 + 2 + 0 + 560 + 4 + 97 = 666.

It is not a de Polignac number, because 320560497 - 2¹⁴ = 320544113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320560297) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72453 + ... + 76749.

Almost surely, 2^320560497 is an apocalyptic number.

It is an amenable number.

320560497 is a deficient number, since it is larger than the sum of its proper divisors (161296879).

320560497 is an equidigital number, since it uses as much as digits as its factorization.

320560497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619 (or 4607 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 320560497 is about 17904.2033332958. The cubic root of 320560497 is about 684.3894942323.

The spelling of 320560497 in words is "three hundred twenty million, five hundred sixty thousand, four hundred ninety-seven".