397052347 has 2 divisors, whose sum is σ = 397052348. Its totient is φ = 397052346.

The previous prime is 397052317. The next prime is 397052363. The reversal of 397052347 is 743250793.

It is a strong prime.

It is an emirp because it is prime and its reverse (743250793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397052347 - 2¹¹ = 397050299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (397052317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198526173 + 198526174.

It is an arithmetic number, because the mean of its divisors is an integer number (198526174).

Almost surely, 2^397052347 is an apocalyptic number.

397052347 is a deficient number, since it is larger than the sum of its proper divisors (1).

397052347 is an equidigital number, since it uses as much as digits as its factorization.

397052347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 397052347 is about 19926.1724121819. The cubic root of 397052347 is about 734.9919612862.

The spelling of 397052347 in words is "three hundred ninety-seven million, fifty-two thousand, three hundred forty-seven".