16939798 has 4 divisors (see below), whose sum is σ = 25409700. Its totient is φ = 8469898.

The previous prime is 16939771. The next prime is 16939801. The reversal of 16939798 is 89793961.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4234948 + ... + 4234951.

It is an arithmetic number, because the mean of its divisors is an integer number (6352425).

Almost surely, 2^16939798 is an apocalyptic number.

16939798 is a deficient number, since it is larger than the sum of its proper divisors (8469902).

16939798 is an equidigital number, since it uses as much as digits as its factorization.

16939798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8469901.

The product of its digits is 734832, while the sum is 52.

The square root of 16939798 is about 4115.7985859369. The cubic root of 16939798 is about 256.8242779265.

The spelling of 16939798 in words is "sixteen million, nine hundred thirty-nine thousand, seven hundred ninety-eight".