399214303 has 2 divisors, whose sum is σ = 399214304. Its totient is φ = 399214302.

The previous prime is 399214273. The next prime is 399214363. The reversal of 399214303 is 303412993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 399214303 - 2⁵ = 399214271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (399214363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199607151 + 199607152.

It is an arithmetic number, because the mean of its divisors is an integer number (199607152).

Almost surely, 2^399214303 is an apocalyptic number.

399214303 is a deficient number, since it is larger than the sum of its proper divisors (1).

399214303 is an equidigital number, since it uses as much as digits as its factorization.

399214303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 399214303 is about 19980.3479198937. The cubic root of 399214303 is about 736.3235614356.

The spelling of 399214303 in words is "three hundred ninety-nine million, two hundred fourteen thousand, three hundred three".