397052207 has 2 divisors, whose sum is σ = 397052208. Its totient is φ = 397052206.

The previous prime is 397052191. The next prime is 397052209. The reversal of 397052207 is 702250793.

It is a strong prime.

It is an emirp because it is prime and its reverse (702250793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397052207 - 2⁴ = 397052191 is a prime.

Together with 397052209, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397052209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198526103 + 198526104.

It is an arithmetic number, because the mean of its divisors is an integer number (198526104).

Almost surely, 2^397052207 is an apocalyptic number.

397052207 is a deficient number, since it is larger than the sum of its proper divisors (1).

397052207 is an equidigital number, since it uses as much as digits as its factorization.

397052207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 397052207 is about 19926.1688992139. The cubic root of 397052207 is about 734.9918749005.

The spelling of 397052207 in words is "three hundred ninety-seven million, fifty-two thousand, two hundred seven".