399113 has 8 divisors (see below), whose sum is σ = 469056. Its totient is φ = 334800.

The previous prime is 399107. The next prime is 399131. The reversal of 399113 is 311993.

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 399113 - 2⁴ = 399097 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (399163) 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, 1253 + ... + 1538.

It is an arithmetic number, because the mean of its divisors is an integer number (58632).

2³⁹⁹¹¹³ is an apocalyptic number.

It is an amenable number.

399113 is a deficient number, since it is larger than the sum of its proper divisors (69943).

399113 is a wasteful number, since it uses less digits than its factorization.

399113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815.

The product of its digits is 729, while the sum is 26.

The square root of 399113 is about 631.7539077837. The cubic root of 399113 is about 73.6261274008.

It can be divided in two parts, 3991 and 13, that added together give a palindrome (4004).

The spelling of 399113 in words is "three hundred ninety-nine thousand, one hundred thirteen".