397579759 has 4 divisors (see below), whose sum is σ = 398167704. Its totient is φ = 396991816.

The previous prime is 397579729. The next prime is 397579781. The reversal of 397579759 is 957975793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 957975793 = 673 ⋅1423441.

It is a cyclic number.

It is not a de Polignac number, because 397579759 - 2⁵ = 397579727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 397579697 and 397579706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397579709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292957 + ... + 294310.

It is an arithmetic number, because the mean of its divisors is an integer number (99541926).

Almost surely, 2^397579759 is an apocalyptic number.

397579759 is a deficient number, since it is larger than the sum of its proper divisors (587945).

397579759 is an equidigital number, since it uses as much as digits as its factorization.

397579759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587944.

The product of its digits is 18753525, while the sum is 61.

The square root of 397579759 is about 19939.4021725828. The cubic root of 397579759 is about 735.3172517856.

The spelling of 397579759 in words is "three hundred ninety-seven million, five hundred seventy-nine thousand, seven hundred fifty-nine".