320940797 has 2 divisors, whose sum is σ = 320940798. Its totient is φ = 320940796.

The previous prime is 320940793. The next prime is 320940821. The reversal of 320940797 is 797049023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180257476 + 140683321 = 13426^2 + 11861^2 .

It is a cyclic number.

It is not a de Polignac number, because 320940797 - 2² = 320940793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320940791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160470398 + 160470399.

It is an arithmetic number, because the mean of its divisors is an integer number (160470399).

Almost surely, 2^320940797 is an apocalyptic number.

It is an amenable number.

320940797 is a deficient number, since it is larger than the sum of its proper divisors (1).

320940797 is an equidigital number, since it uses as much as digits as its factorization.

320940797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 320940797 is about 17914.8205963666. The cubic root of 320940797 is about 684.6600312750.

The spelling of 320940797 in words is "three hundred twenty million, nine hundred forty thousand, seven hundred ninety-seven".