16930239 has 4 divisors (see below), whose sum is σ = 22573656. Its totient is φ = 11286824.

The previous prime is 16930237. The next prime is 16930259. The reversal of 16930239 is 93203961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16930239 - 2¹ = 16930237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16930237) 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 3 ways as a sum of consecutive naturals, for example, 2821704 + ... + 2821709.

It is an arithmetic number, because the mean of its divisors is an integer number (5643414).

Almost surely, 2^16930239 is an apocalyptic number.

16930239 is a deficient number, since it is larger than the sum of its proper divisors (5643417).

16930239 is an equidigital number, since it uses as much as digits as its factorization.

16930239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643416.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 16930239 is about 4114.6371650487. The cubic root of 16930239 is about 256.7759608373.

The spelling of 16930239 in words is "sixteen million, nine hundred thirty thousand, two hundred thirty-nine".