399350113 has 6 divisors (see below), whose sum is σ = 421475154. Its totient is φ = 378331344.

The previous prime is 399350099. The next prime is 399350183. The reversal of 399350113 is 311053993.

It can be written as a sum of positive squares in only one way, i.e., 384473664 + 14876449 = 19608^2 + 3857^2 .

It is a de Polignac number, because none of the positive numbers 2^k-399350113 is a prime.

It is a super-2 number, since 2×399350113² = 318961025506225538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399350183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552756 + ... + 553477.

It is an arithmetic number, because the mean of its divisors is an integer number (70245859).

Almost surely, 2^399350113 is an apocalyptic number.

It is an amenable number.

399350113 is a deficient number, since it is larger than the sum of its proper divisors (22125041).

399350113 is a wasteful number, since it uses less digits than its factorization.

399350113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106271 (or 1106252 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 34.

The square root of 399350113 is about 19983.7462203662. The cubic root of 399350113 is about 736.4070493972.

The spelling of 399350113 in words is "three hundred ninety-nine million, three hundred fifty thousand, one hundred thirteen".