397001233 has 2 divisors, whose sum is σ = 397001234. Its totient is φ = 397001232.

The previous prime is 397001177. The next prime is 397001273. The reversal of 397001233 is 332100793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292307409 + 104693824 = 17097^2 + 10232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397001233 is a prime.

It is not a weakly prime, because it can be changed into another prime (397001273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198500616 + 198500617.

It is an arithmetic number, because the mean of its divisors is an integer number (198500617).

Almost surely, 2^397001233 is an apocalyptic number.

It is an amenable number.

397001233 is a deficient number, since it is larger than the sum of its proper divisors (1).

397001233 is an equidigital number, since it uses as much as digits as its factorization.

397001233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 397001233 is about 19924.8897863953. The cubic root of 397001233 is about 734.9604205321.

The spelling of 397001233 in words is "three hundred ninety-seven million, one thousand, two hundred thirty-three".