399083371 has 4 divisors (see below), whose sum is σ = 399153744. Its totient is φ = 399013000.

The previous prime is 399083359. The next prime is 399083383. The reversal of 399083371 is 173380993.

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

It is an interprime number because it is at equal distance from previous prime (399083359) and next prime (399083383).

It is a cyclic number.

It is not a de Polignac number, because 399083371 - 2¹³ = 399075179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399083341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25855 + ... + 38296.

It is an arithmetic number, because the mean of its divisors is an integer number (99788436).

Almost surely, 2^399083371 is an apocalyptic number.

399083371 is a deficient number, since it is larger than the sum of its proper divisors (70373).

399083371 is an equidigital number, since it uses as much as digits as its factorization.

399083371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70372.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 399083371 is about 19977.0711316749. The cubic root of 399083371 is about 736.2430542514.

The spelling of 399083371 in words is "three hundred ninety-nine million, eighty-three thousand, three hundred seventy-one".