397283449 has 2 divisors, whose sum is σ = 397283450. Its totient is φ = 397283448.

The previous prime is 397283443. The next prime is 397283459. The reversal of 397283449 is 944382793.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385415424 + 11868025 = 19632^2 + 3445^2 .

It is a cyclic number.

It is not a de Polignac number, because 397283449 - 2²³ = 388894841 is a prime.

It is not a weakly prime, because it can be changed into another prime (397283443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198641724 + 198641725.

It is an arithmetic number, because the mean of its divisors is an integer number (198641725).

Almost surely, 2^397283449 is an apocalyptic number.

It is an amenable number.

397283449 is a deficient number, since it is larger than the sum of its proper divisors (1).

397283449 is an equidigital number, since it uses as much as digits as its factorization.

397283449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 397283449 is about 19931.9705247625. The cubic root of 397283449 is about 735.1345328885.

The spelling of 397283449 in words is "three hundred ninety-seven million, two hundred eighty-three thousand, four hundred forty-nine".