16689910 has 16 divisors (see below), whose sum is σ = 30132000. Its totient is φ = 6655936.

The previous prime is 16689887. The next prime is 16689913. The reversal of 16689910 is 1998661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16689913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 5914.

It is an arithmetic number, because the mean of its divisors is an integer number (1883250).

Almost surely, 2^16689910 is an apocalyptic number.

16689910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16689910 is a deficient number, since it is larger than the sum of its proper divisors (13442090).

16689910 is a wasteful number, since it uses less digits than its factorization.

16689910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 16689910 is about 4085.3286281522. The cubic root of 16689910 is about 255.5551662110. Note that the first 3 decimals are identical.

The spelling of 16689910 in words is "sixteen million, six hundred eighty-nine thousand, nine hundred ten".