16698980 has 12 divisors (see below), whose sum is σ = 35067900. Its totient is φ = 6679584.

The previous prime is 16698977. The next prime is 16699009. The reversal of 16698980 is 8989661.

It can be written as a sum of positive squares in 2 ways, for example, as 9897316 + 6801664 = 3146^2 + 2608^2 .

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, 417455 + ... + 417494.

It is an arithmetic number, because the mean of its divisors is an integer number (2922325).

Almost surely, 2^16698980 is an apocalyptic number.

16698980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16698980 is an abundant number, since it is smaller than the sum of its proper divisors (18368920).

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

16698980 is a wasteful number, since it uses less digits than its factorization.

16698980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834958 (or 834956 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 16698980 is about 4086.4385471949. The cubic root of 16698980 is about 255.6014509744.

The spelling of 16698980 in words is "sixteen million, six hundred ninety-eight thousand, nine hundred eighty".