397402199 has 2 divisors, whose sum is σ = 397402200. Its totient is φ = 397402198.

The previous prime is 397402193. The next prime is 397402219. The reversal of 397402199 is 991204793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 397402199 - 2⁸ = 397401943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397402193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198701099 + 198701100.

It is an arithmetic number, because the mean of its divisors is an integer number (198701100).

Almost surely, 2^397402199 is an apocalyptic number.

397402199 is a deficient number, since it is larger than the sum of its proper divisors (1).

397402199 is an equidigital number, since it uses as much as digits as its factorization.

397402199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 397402199 is about 19934.9491847860. The cubic root of 397402199 is about 735.2077707154.

The spelling of 397402199 in words is "three hundred ninety-seven million, four hundred two thousand, one hundred ninety-nine".