16801239 has 16 divisors (see below), whose sum is σ = 27571712. Its totient is φ = 8862048.

The previous prime is 16801223. The next prime is 16801243. The reversal of 16801239 is 93210861.

It is not a de Polignac number, because 16801239 - 2⁴ = 16801223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16801139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30499 + ... + 31044.

It is an arithmetic number, because the mean of its divisors is an integer number (1723232).

Almost surely, 2^16801239 is an apocalyptic number.

16801239 is a deficient number, since it is larger than the sum of its proper divisors (10770473).

16801239 is a wasteful number, since it uses less digits than its factorization.

16801239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61566.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 16801239 is about 4098.9314461210. The cubic root of 16801239 is about 256.1221290236.

The spelling of 16801239 in words is "sixteen million, eight hundred one thousand, two hundred thirty-nine".