397441579 has 2 divisors, whose sum is σ = 397441580. Its totient is φ = 397441578.

The previous prime is 397441573. The next prime is 397441591. The reversal of 397441579 is 975144793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 397441579 - 2¹¹ = 397439531 is a prime.

It is not a weakly prime, because it can be changed into another prime (397441573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198720789 + 198720790.

It is an arithmetic number, because the mean of its divisors is an integer number (198720790).

Almost surely, 2^397441579 is an apocalyptic number.

397441579 is a deficient number, since it is larger than the sum of its proper divisors (1).

397441579 is an equidigital number, since it uses as much as digits as its factorization.

397441579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 397441579 is about 19935.9368728936. The cubic root of 397441579 is about 735.2320546992.

The spelling of 397441579 in words is "three hundred ninety-seven million, four hundred forty-one thousand, five hundred seventy-nine".