16397668 has 24 divisors (see below), whose sum is σ = 32931584. Its totient is φ = 6998400.

The previous prime is 16397651. The next prime is 16397669. The reversal of 16397668 is 86679361.

It is not an unprimeable number, because it can be changed into a prime (16397669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6508 + ... + 8668.

Almost surely, 2^16397668 is an apocalyptic number.

It is an amenable number.

16397668 is an abundant number, since it is smaller than the sum of its proper divisors (16533916).

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

16397668 is a wasteful number, since it uses less digits than its factorization.

16397668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443 (or 2441 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 16397668 is about 4049.4034128498. The cubic root of 16397668 is about 254.0547756296.

The spelling of 16397668 in words is "sixteen million, three hundred ninety-seven thousand, six hundred sixty-eight".