397547 has 2 divisors, whose sum is σ = 397548. Its totient is φ = 397546.

The previous prime is 397543. The next prime is 397549. The reversal of 397547 is 745793.

It is a strong prime.

397547 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 397547 - 2² = 397543 is a prime.

Together with 397549, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (397541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198773 + 198774.

It is an arithmetic number, because the mean of its divisors is an integer number (198774).

2³⁹⁷⁵⁴⁷ is an apocalyptic number.

397547 is a deficient number, since it is larger than the sum of its proper divisors (1).

397547 is an equidigital number, since it uses as much as digits as its factorization.

397547 is an odious number, because the sum of its binary digits is odd.

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

The square root of 397547 is about 630.5132829687. The cubic root of 397547 is about 73.5297055486.

The spelling of 397547 in words is "three hundred ninety-seven thousand, five hundred forty-seven".