16893666 has 12 divisors (see below), whose sum is σ = 36602982. Its totient is φ = 5631216.

The previous prime is 16893649. The next prime is 16893673. The reversal of 16893666 is 66639861.

It can be written as a sum of positive squares in only one way, i.e., 14220441 + 2673225 = 3771^2 + 1635^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 469251 + ... + 469286.

Almost surely, 2^16893666 is an apocalyptic number.

16893666 is an abundant number, since it is smaller than the sum of its proper divisors (19709316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16893666 is a wasteful number, since it uses less digits than its factorization.

16893666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938545 (or 938542 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 16893666 is about 4110.1905065337. The cubic root of 16893666 is about 256.5909302225.

The spelling of 16893666 in words is "sixteen million, eight hundred ninety-three thousand, six hundred sixty-six".