17982939 has 8 divisors (see below), whose sum is σ = 25821712. Its totient is φ = 11066400.

The previous prime is 17982931. The next prime is 17982961. The reversal of 17982939 is 93928971.

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

It is not a de Polignac number, because 17982939 - 2³ = 17982931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17982931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230512 + ... + 230589.

It is an arithmetic number, because the mean of its divisors is an integer number (3227714).

Almost surely, 2^17982939 is an apocalyptic number.

17982939 is a deficient number, since it is larger than the sum of its proper divisors (7838773).

17982939 is a wasteful number, since it uses less digits than its factorization.

17982939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461117.

The product of its digits is 244944, while the sum is 48.

The square root of 17982939 is about 4240.6295523189. The cubic root of 17982939 is about 261.9913123782.

The spelling of 17982939 in words is "seventeen million, nine hundred eighty-two thousand, nine hundred thirty-nine".