397965459 has 8 divisors (see below), whose sum is σ = 530753472. Its totient is φ = 265243880.

The previous prime is 397965457. The next prime is 397965467. The reversal of 397965459 is 954569793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397965459 - 2¹ = 397965457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 397965399 and 397965408.

It is not an unprimeable number, because it can be changed into a prime (397965457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357 + ... + 28214.

It is an arithmetic number, because the mean of its divisors is an integer number (66344184).

Almost surely, 2^397965459 is an apocalyptic number.

397965459 is a deficient number, since it is larger than the sum of its proper divisors (132788013).

397965459 is a wasteful number, since it uses less digits than its factorization.

397965459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33217.

The product of its digits is 9185400, while the sum is 57.

The square root of 397965459 is about 19949.0716325347. The cubic root of 397965459 is about 735.5549568788.

The spelling of 397965459 in words is "three hundred ninety-seven million, nine hundred sixty-five thousand, four hundred fifty-nine".