397104647 has 2 divisors, whose sum is σ = 397104648. Its totient is φ = 397104646.

The previous prime is 397104611. The next prime is 397104667. The reversal of 397104647 is 746401793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397104647 - 2⁸ = 397104391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397104607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198552323 + 198552324.

It is an arithmetic number, because the mean of its divisors is an integer number (198552324).

Almost surely, 2^397104647 is an apocalyptic number.

397104647 is a deficient number, since it is larger than the sum of its proper divisors (1).

397104647 is an equidigital number, since it uses as much as digits as its factorization.

397104647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 397104647 is about 19927.4847133300. The cubic root of 397104647 is about 735.0242310798.

The spelling of 397104647 in words is "three hundred ninety-seven million, one hundred four thousand, six hundred forty-seven".