39988159 has 8 divisors (see below), whose sum is σ = 40727232. Its totient is φ = 39254400.

The previous prime is 39988139. The next prime is 39988181. The reversal of 39988159 is 95188993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39988159 - 2⁵ = 39988127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39988139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15834 + ... + 18184.

It is an arithmetic number, because the mean of its divisors is an integer number (5090904).

Almost surely, 2^39988159 is an apocalyptic number.

39988159 is a deficient number, since it is larger than the sum of its proper divisors (739073).

39988159 is a wasteful number, since it uses less digits than its factorization.

39988159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657.

The product of its digits is 699840, while the sum is 52.

The square root of 39988159 is about 6323.6191378039. The cubic root of 39988159 is about 341.9614396296.

The spelling of 39988159 in words is "thirty-nine million, nine hundred eighty-eight thousand, one hundred fifty-nine".