397499 has 4 divisors (see below), whose sum is σ = 418440. Its totient is φ = 376560.

The previous prime is 397493. The next prime is 397517. The reversal of 397499 is 994793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 397499 - 2¹² = 393403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10442 + ... + 10479.

It is an arithmetic number, because the mean of its divisors is an integer number (104610).

2³⁹⁷⁴⁹⁹ is an apocalyptic number.

397499 is a deficient number, since it is larger than the sum of its proper divisors (20941).

397499 is a wasteful number, since it uses less digits than its factorization.

397499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20940.

The product of its digits is 61236, while the sum is 41.

The square root of 397499 is about 630.4752175938. The cubic root of 397499 is about 73.5267460932.

The spelling of 397499 in words is "three hundred ninety-seven thousand, four hundred ninety-nine".