397449359 has 2 divisors, whose sum is σ = 397449360. Its totient is φ = 397449358.

The previous prime is 397449251. The next prime is 397449389. The reversal of 397449359 is 953944793.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (953944793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397449359 - 2²⁸ = 129013903 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397449359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397449389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198724679 + 198724680.

It is an arithmetic number, because the mean of its divisors is an integer number (198724680).

Almost surely, 2^397449359 is an apocalyptic number.

397449359 is a deficient number, since it is larger than the sum of its proper divisors (1).

397449359 is an equidigital number, since it uses as much as digits as its factorization.

397449359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 53.

The square root of 397449359 is about 19936.1319969547. The cubic root of 397449359 is about 735.2368521070.

The spelling of 397449359 in words is "three hundred ninety-seven million, four hundred forty-nine thousand, three hundred fifty-nine".