16317439 has 8 divisors (see below), whose sum is σ = 17121920. Its totient is φ = 15530400.

The previous prime is 16317421. The next prime is 16317443. The reversal of 16317439 is 93471361.

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 16317439 - 2⁷ = 16317311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16317479) 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, 2424 + ... + 6205.

It is an arithmetic number, because the mean of its divisors is an integer number (2140240).

Almost surely, 2^16317439 is an apocalyptic number.

16317439 is a deficient number, since it is larger than the sum of its proper divisors (804481).

16317439 is an equidigital number, since it uses as much as digits as its factorization.

16317439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721.

The product of its digits is 13608, while the sum is 34.

The square root of 16317439 is about 4039.4849919266. The cubic root of 16317439 is about 253.6397594371.

The spelling of 16317439 in words is "sixteen million, three hundred seventeen thousand, four hundred thirty-nine".