397239 has 8 divisors (see below), whose sum is σ = 560880. Its totient is φ = 249216.

The previous prime is 397237. The next prime is 397253. The reversal of 397239 is 932793.

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

It is not a de Polignac number, because 397239 - 2¹ = 397237 is a prime.

It is an Ulam number.

397239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397237) 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, 3844 + ... + 3945.

It is an arithmetic number, because the mean of its divisors is an integer number (70110).

2³⁹⁷²³⁹ is an apocalyptic number.

397239 is a deficient number, since it is larger than the sum of its proper divisors (163641).

397239 is a wasteful number, since it uses less digits than its factorization.

397239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7809.

The product of its digits is 10206, while the sum is 33.

The square root of 397239 is about 630.2689901939. The cubic root of 397239 is about 73.5107115677.

It can be divided in two parts, 397 and 239, that added together give a palindrome (636).

The spelling of 397239 in words is "three hundred ninety-seven thousand, two hundred thirty-nine".