16986925 has 12 divisors (see below), whose sum is σ = 21159360. Its totient is φ = 13527920.

The previous prime is 16986923. The next prime is 16986941. The reversal of 16986925 is 52968961.

It is not a de Polignac number, because 16986925 - 2¹ = 16986923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16986923) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 4554 + ... + 7396.

It is an arithmetic number, because the mean of its divisors is an integer number (1763280).

Almost surely, 2^16986925 is an apocalyptic number.

It is an amenable number.

16986925 is a deficient number, since it is larger than the sum of its proper divisors (4172435).

16986925 is a wasteful number, since it uses less digits than its factorization.

16986925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092 (or 3087 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 16986925 is about 4121.5197439779. The cubic root of 16986925 is about 257.0622215568.

The spelling of 16986925 in words is "sixteen million, nine hundred eighty-six thousand, nine hundred twenty-five".