397567 has 2 divisors, whose sum is σ = 397568. Its totient is φ = 397566.

The previous prime is 397549. The next prime is 397589. The reversal of 397567 is 765793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397567 is a prime.

It is a Chen prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198783 + 198784.

It is an arithmetic number, because the mean of its divisors is an integer number (198784).

2³⁹⁷⁵⁶⁷ is an apocalyptic number.

397567 is a deficient number, since it is larger than the sum of its proper divisors (1).

397567 is an equidigital number, since it uses as much as digits as its factorization.

397567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 37.

The square root of 397567 is about 630.5291428634. The cubic root of 397567 is about 73.5309385848.

The spelling of 397567 in words is "three hundred ninety-seven thousand, five hundred sixty-seven".