399297 has 8 divisors (see below), whose sum is σ = 536256. Its totient is φ = 264272.

The previous prime is 399283. The next prime is 399353. The reversal of 399297 is 792993.

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

It is a cyclic number.

It is not a de Polignac number, because 399297 - 2⁴ = 399281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399227) 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, 103 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2³⁹⁹²⁹⁷ is an apocalyptic number.

It is an amenable number.

399297 is a deficient number, since it is larger than the sum of its proper divisors (136959).

399297 is a wasteful number, since it uses less digits than its factorization.

399297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its digits is 30618, while the sum is 39.

The square root of 399297 is about 631.8995173285. The cubic root of 399297 is about 73.6374400918.

It can be divided in two parts, 399 and 297, that added together give a palindrome (696).

The spelling of 399297 in words is "three hundred ninety-nine thousand, two hundred ninety-seven".