39899159 has 2 divisors, whose sum is σ = 39899160. Its totient is φ = 39899158.

The previous prime is 39899149. The next prime is 39899161. The reversal of 39899159 is 95199893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39899159 - 2⁴ = 39899143 is a prime.

It is a Sophie Germain prime.

Together with 39899161, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39899159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39899149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19949579 + 19949580.

It is an arithmetic number, because the mean of its divisors is an integer number (19949580).

Almost surely, 2^39899159 is an apocalyptic number.

39899159 is a deficient number, since it is larger than the sum of its proper divisors (1).

39899159 is an equidigital number, since it uses as much as digits as its factorization.

39899159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 53.

The square root of 39899159 is about 6316.5781084381. The cubic root of 39899159 is about 341.7075546810.

The spelling of 39899159 in words is "thirty-nine million, eight hundred ninety-nine thousand, one hundred fifty-nine".