399699333 has 64 divisors (see below), whose sum is σ = 685363200. Its totient is φ = 227681280.

The previous prime is 399699331. The next prime is 399699347. The reversal of 399699333 is 333996993.

It is not a de Polignac number, because 399699333 - 2¹ = 399699331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 399699333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399699331) 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 63 ways as a sum of consecutive naturals, for example, 1088916 + ... + 1089282.

It is an arithmetic number, because the mean of its divisors is an integer number (10708800).

Almost surely, 2^399699333 is an apocalyptic number.

399699333 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

399699333 is a deficient number, since it is larger than the sum of its proper divisors (285663867).

399699333 is a wasteful number, since it uses less digits than its factorization.

399699333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 593 counting only the distinct ones).

The product of its digits is 3188646, while the sum is 54.

The square root of 399699333 is about 19992.4819119588. The cubic root of 399699333 is about 736.6216423369.

The spelling of 399699333 in words is "three hundred ninety-nine million, six hundred ninety-nine thousand, three hundred thirty-three".