399692 has 6 divisors (see below), whose sum is σ = 699468. Its totient is φ = 199844.

The previous prime is 399691. The next prime is 399719. The reversal of 399692 is 296993.

It is not an unprimeable number, because it can be changed into a prime (399691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49958 + ... + 49965.

It is an arithmetic number, because the mean of its divisors is an integer number (116578).

2³⁹⁹⁶⁹² is an apocalyptic number.

It is an amenable number.

399692 is a deficient number, since it is larger than the sum of its proper divisors (299776).

399692 is a wasteful number, since it uses less digits than its factorization.

399692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99927 (or 99925 counting only the distinct ones).

The product of its digits is 26244, while the sum is 38.

The square root of 399692 is about 632.2119897629. The cubic root of 399692 is about 73.6617137551.

The spelling of 399692 in words is "three hundred ninety-nine thousand, six hundred ninety-two".