16939085 has 4 divisors (see below), whose sum is σ = 20326908. Its totient is φ = 13551264.

The previous prime is 16939073. The next prime is 16939093. The reversal of 16939085 is 58093961.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1713481 + 15225604 = 1309^2 + 3902^2 .

It is a cyclic number.

It is not a de Polignac number, because 16939085 - 2⁸ = 16938829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693904 + ... + 1693913.

It is an arithmetic number, because the mean of its divisors is an integer number (5081727).

Almost surely, 2^16939085 is an apocalyptic number.

It is an amenable number.

16939085 is a deficient number, since it is larger than the sum of its proper divisors (3387823).

16939085 is an equidigital number, since it uses as much as digits as its factorization.

16939085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387822.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 16939085 is about 4115.7119675701. The cubic root of 16939085 is about 256.8206746116.

The spelling of 16939085 in words is "sixteen million, nine hundred thirty-nine thousand, eighty-five".