397089 has 32 divisors (see below), whose sum is σ = 737280. Its totient is φ = 205200.

The previous prime is 397073. The next prime is 397093. The reversal of 397089 is 980793.

It is not a de Polignac number, because 397089 - 2⁴ = 397073 is a prime.

It is a Curzon number.

397089 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397089.

It is not an unprimeable number, because it can be changed into a prime (397099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1984 + ... + 2174.

It is an arithmetic number, because the mean of its divisors is an integer number (23040).

2³⁹⁷⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

397089 is a deficient number, since it is larger than the sum of its proper divisors (340191).

397089 is a wasteful number, since it uses less digits than its factorization.

397089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 397089 is about 630.1499821471. The cubic root of 397089 is about 73.5014576970.

The spelling of 397089 in words is "three hundred ninety-seven thousand, eighty-nine".