16689675 has 24 divisors (see below), whose sum is σ = 27760624. Its totient is φ = 8847360.

The previous prime is 16689649. The next prime is 16689683. The reversal of 16689675 is 57698661.

It is not a de Polignac number, because 16689675 - 2⁶ = 16689611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13899 + ... + 15051.

Almost surely, 2^16689675 is an apocalyptic number.

16689675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16689675 is a deficient number, since it is larger than the sum of its proper divisors (11070949).

16689675 is a wasteful number, since it uses less digits than its factorization.

16689675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1354 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 16689675 is about 4085.2998665949. The cubic root of 16689675 is about 255.5539667688.

The spelling of 16689675 in words is "sixteen million, six hundred eighty-nine thousand, six hundred seventy-five".