16969966 has 12 divisors (see below), whose sum is σ = 27564192. Its totient is φ = 7832136.

The previous prime is 16969963. The next prime is 16969991. The reversal of 16969966 is 66996961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16969963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24766 + ... + 25441.

It is an arithmetic number, because the mean of its divisors is an integer number (2297016).

Almost surely, 2^16969966 is an apocalyptic number.

16969966 is a deficient number, since it is larger than the sum of its proper divisors (10594226).

16969966 is a wasteful number, since it uses less digits than its factorization.

16969966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50235 (or 50222 counting only the distinct ones).

The product of its digits is 944784, while the sum is 52.

The square root of 16969966 is about 4119.4618580586. The cubic root of 16969966 is about 256.9766465277.

The spelling of 16969966 in words is "sixteen million, nine hundred sixty-nine thousand, nine hundred sixty-six".