399358 has 4 divisors (see below), whose sum is σ = 599040. Its totient is φ = 199678.

The previous prime is 399353. The next prime is 399379. The reversal of 399358 is 853993.

399358 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99838 + ... + 99841.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

2³⁹⁹³⁵⁸ is an apocalyptic number.

399358 is a deficient number, since it is larger than the sum of its proper divisors (199682).

399358 is a wasteful number, since it uses less digits than its factorization.

399358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199681.

The product of its digits is 29160, while the sum is 37.

The square root of 399358 is about 631.9477826530. The cubic root of 399358 is about 73.6411897277.

It can be divided in two parts, 399 and 358, that added together give a palindrome (757).

The spelling of 399358 in words is "three hundred ninety-nine thousand, three hundred fifty-eight".