397245322673 has 2 divisors, whose sum is σ = 397245322674. Its totient is φ = 397245322672.

The previous prime is 397245322667. The next prime is 397245322739. The reversal of 397245322673 is 376223542793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397060036129 + 185286544 = 630127^2 + 13612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397245322673 is a prime.

It is not a weakly prime, because it can be changed into another prime (397245322603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198622661336 + 198622661337.

It is an arithmetic number, because the mean of its divisors is an integer number (198622661337).

Almost surely, 2^397245322673 is an apocalyptic number.

It is an amenable number.

397245322673 is a deficient number, since it is larger than the sum of its proper divisors (1).

397245322673 is an equidigital number, since it uses as much as digits as its factorization.

397245322673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 53.

The spelling of 397245322673 in words is "three hundred ninety-seven billion, two hundred forty-five million, three hundred twenty-two thousand, six hundred seventy-three".