16925990 has 16 divisors (see below), whose sum is σ = 30764448. Its totient is φ = 6704256.

The previous prime is 16925981. The next prime is 16926011. The reversal of 16925990 is 9952961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7187 + ... + 9246.

It is an arithmetic number, because the mean of its divisors is an integer number (1922778).

Almost surely, 2^16925990 is an apocalyptic number.

16925990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16925990 is a deficient number, since it is larger than the sum of its proper divisors (13838458).

16925990 is a wasteful number, since it uses less digits than its factorization.

16925990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16543.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 16925990 is about 4114.1208052268. The cubic root of 16925990 is about 256.7544779284.

The spelling of 16925990 in words is "sixteen million, nine hundred twenty-five thousand, nine hundred ninety".