16860239 has 8 divisors (see below), whose sum is σ = 19361280. Its totient is φ = 14520600.

The previous prime is 16860211. The next prime is 16860241. The reversal of 16860239 is 93206861.

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 16860239 - 2²⁴ = 83023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16860199 and 16860208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16862239) 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, 40127 + ... + 40544.

It is an arithmetic number, because the mean of its divisors is an integer number (2420160).

Almost surely, 2^16860239 is an apocalyptic number.

16860239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16860239 is a deficient number, since it is larger than the sum of its proper divisors (2501041).

16860239 is a wasteful number, since it uses less digits than its factorization.

16860239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80701.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 16860239 is about 4106.1221365176. The cubic root of 16860239 is about 256.4215821699.

The spelling of 16860239 in words is "sixteen million, eight hundred sixty thousand, two hundred thirty-nine".