399093335 has 4 divisors (see below), whose sum is σ = 478912008. Its totient is φ = 319274664.

The previous prime is 399093329. The next prime is 399093337. The reversal of 399093335 is 533390993.

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

It is a cyclic number.

It is not a de Polignac number, because 399093335 - 2¹² = 399089239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399093337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39909329 + ... + 39909338.

It is an arithmetic number, because the mean of its divisors is an integer number (119728002).

Almost surely, 2^399093335 is an apocalyptic number.

399093335 is a deficient number, since it is larger than the sum of its proper divisors (79818673).

399093335 is an equidigital number, since it uses as much as digits as its factorization.

399093335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79818672.

The product of its (nonzero) digits is 295245, while the sum is 44.

The square root of 399093335 is about 19977.3205160252. The cubic root of 399093335 is about 736.2491815130.

The spelling of 399093335 in words is "three hundred ninety-nine million, ninety-three thousand, three hundred thirty-five".