397683347 has 2 divisors, whose sum is σ = 397683348. Its totient is φ = 397683346.

The previous prime is 397683337. The next prime is 397683353. The reversal of 397683347 is 743386793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397683347 - 2⁴ = 397683331 is a prime.

It is a super-2 number, since 2×397683347² = 316304088962244818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 397683295 and 397683304.

It is not a weakly prime, because it can be changed into another prime (397683337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198841673 + 198841674.

It is an arithmetic number, because the mean of its divisors is an integer number (198841674).

Almost surely, 2^397683347 is an apocalyptic number.

397683347 is a deficient number, since it is larger than the sum of its proper divisors (1).

397683347 is an equidigital number, since it uses as much as digits as its factorization.

397683347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 50.

The square root of 397683347 is about 19941.9995737639. Note that the first 3 decimals coincide. The cubic root of 397683347 is about 735.3811076766.

The spelling of 397683347 in words is "three hundred ninety-seven million, six hundred eighty-three thousand, three hundred forty-seven".