397683337 has 2 divisors, whose sum is σ = 397683338. Its totient is φ = 397683336.

The previous prime is 397683331. The next prime is 397683347. The reversal of 397683337 is 733386793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256928841 + 140754496 = 16029^2 + 11864^2 .

It is a cyclic number.

It is not a de Polignac number, because 397683337 - 2¹⁵ = 397650569 is a prime.

It is not a weakly prime, because it can be changed into another prime (397683331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198841668 + 198841669.

It is an arithmetic number, because the mean of its divisors is an integer number (198841669).

Almost surely, 2^397683337 is an apocalyptic number.

It is an amenable number.

397683337 is a deficient number, since it is larger than the sum of its proper divisors (1).

397683337 is an equidigital number, since it uses as much as digits as its factorization.

397683337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 49.

The square root of 397683337 is about 19941.9993230368. Note that the first 3 decimals coincide. The cubic root of 397683337 is about 735.3811015127.

The spelling of 397683337 in words is "three hundred ninety-seven million, six hundred eighty-three thousand, three hundred thirty-seven".