320466973 has 2 divisors, whose sum is σ = 320466974. Its totient is φ = 320466972.

The previous prime is 320466967. The next prime is 320466989. The reversal of 320466973 is 379664023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319587129 + 879844 = 17877^2 + 938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320466973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320466943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160233486 + 160233487.

It is an arithmetic number, because the mean of its divisors is an integer number (160233487).

Almost surely, 2^320466973 is an apocalyptic number.

It is an amenable number.

320466973 is a deficient number, since it is larger than the sum of its proper divisors (1).

320466973 is an equidigital number, since it uses as much as digits as its factorization.

320466973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 320466973 is about 17901.5913538434. The cubic root of 320466973 is about 684.3229305422.

The spelling of 320466973 in words is "three hundred twenty million, four hundred sixty-six thousand, nine hundred seventy-three".