16939900 has 18 divisors (see below), whose sum is σ = 36759800. Its totient is φ = 6775920.

The previous prime is 16939889. The next prime is 16939907. The reversal of 16939900 is 993961.

It is a self number, because there is not a number n which added to its sum of digits gives 16939900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16939907) 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 5 ways as a sum of consecutive naturals, for example, 84600 + ... + 84799.

Almost surely, 2^16939900 is an apocalyptic number.

16939900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16939900 is an abundant number, since it is smaller than the sum of its proper divisors (19819900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16939900 is a wasteful number, since it uses less digits than its factorization.

16939900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169413 (or 169406 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 16939900 is about 4115.8109771951. The cubic root of 16939900 is about 256.8247933994.

The spelling of 16939900 in words is "sixteen million, nine hundred thirty-nine thousand, nine hundred".