399494059 has 2 divisors, whose sum is σ = 399494060. Its totient is φ = 399494058.

The previous prime is 399494041. The next prime is 399494077. The reversal of 399494059 is 950494993.

It is a balanced prime because it is at equal distance from previous prime (399494041) and next prime (399494077).

It is a cyclic number.

It is not a de Polignac number, because 399494059 - 2⁹ = 399493547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 399493997 and 399494015.

It is not a weakly prime, because it can be changed into another prime (399494089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199747029 + 199747030.

It is an arithmetic number, because the mean of its divisors is an integer number (199747030).

Almost surely, 2^399494059 is an apocalyptic number.

399494059 is a deficient number, since it is larger than the sum of its proper divisors (1).

399494059 is an equidigital number, since it uses as much as digits as its factorization.

399494059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 399494059 is about 19987.3474728389. The cubic root of 399494059 is about 736.4955182302.

The spelling of 399494059 in words is "three hundred ninety-nine million, four hundred ninety-four thousand, fifty-nine".