399576 has 16 divisors (see below), whose sum is σ = 999000. Its totient is φ = 133184.

The previous prime is 399571. The next prime is 399577. The reversal of 399576 is 675993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399571) 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, 8301 + ... + 8348.

2³⁹⁹⁵⁷⁶ is an apocalyptic number.

It is an amenable number.

399576 is an abundant number, since it is smaller than the sum of its proper divisors (599424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399576 is a wasteful number, since it uses less digits than its factorization.

399576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16658 (or 16654 counting only the distinct ones).

The product of its digits is 51030, while the sum is 39.

The square root of 399576 is about 632.1202417262. The cubic root of 399576 is about 73.6545869462.

The spelling of 399576 in words is "three hundred ninety-nine thousand, five hundred seventy-six".