399159703 has 2 divisors, whose sum is σ = 399159704. Its totient is φ = 399159702.

The previous prime is 399159697. The next prime is 399159713. The reversal of 399159703 is 307951993.

It is a weak prime.

It is an emirp because it is prime and its reverse (307951993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 399159703 - 2⁵ = 399159671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (399159713) 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 as a sum of consecutive naturals, namely, 199579851 + 199579852.

It is an arithmetic number, because the mean of its divisors is an integer number (199579852).

Almost surely, 2^399159703 is an apocalyptic number.

399159703 is a deficient number, since it is larger than the sum of its proper divisors (1).

399159703 is an equidigital number, since it uses as much as digits as its factorization.

399159703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 399159703 is about 19978.9815305986. The cubic root of 399159703 is about 736.2899912460.

The spelling of 399159703 in words is "three hundred ninety-nine million, one hundred fifty-nine thousand, seven hundred three".