399911303 has 16 divisors (see below), whose sum is σ = 445438752. Its totient is φ = 355968000.

The previous prime is 399911293. The next prime is 399911311. The reversal of 399911303 is 303119993.

It is a cyclic number.

It is not a de Polignac number, because 399911303 - 2⁴ = 399911287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399911333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160475 + ... + 162947.

It is an arithmetic number, because the mean of its divisors is an integer number (27839922).

Almost surely, 2^399911303 is an apocalyptic number.

399911303 is a deficient number, since it is larger than the sum of its proper divisors (45527449).

399911303 is a wasteful number, since it uses less digits than its factorization.

399911303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786.

The product of its (nonzero) digits is 19683, while the sum is 38.

The square root of 399911303 is about 19997.7824520620. The cubic root of 399911303 is about 736.7518352785.

The spelling of 399911303 in words is "three hundred ninety-nine million, nine hundred eleven thousand, three hundred three".