397366241 has 2 divisors, whose sum is σ = 397366242. Its totient is φ = 397366240.

The previous prime is 397366237. The next prime is 397366253. The reversal of 397366241 is 142663793.

397366241 = 14095² + 14096².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198697216 + 198669025 = 14096^2 + 14095^2 .

It is an emirp because it is prime and its reverse (142663793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397366241 - 2² = 397366237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (397366201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198683120 + 198683121.

It is an arithmetic number, because the mean of its divisors is an integer number (198683121).

Almost surely, 2^397366241 is an apocalyptic number.

397366241 is the 14096-th centered square number.

It is an amenable number.

397366241 is a deficient number, since it is larger than the sum of its proper divisors (1).

397366241 is an equidigital number, since it uses as much as digits as its factorization.

397366241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 397366241 is about 19934.0472809713. The cubic root of 397366241 is about 735.1855955332.

The spelling of 397366241 in words is "three hundred ninety-seven million, three hundred sixty-six thousand, two hundred forty-one".