16621196 has 12 divisors (see below), whose sum is σ = 29116752. Its totient is φ = 8302128.

The previous prime is 16621193. The next prime is 16621207. The reversal of 16621196 is 69112661.

It is not an unprimeable number, because it can be changed into a prime (16621193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4826 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (2426396).

Almost surely, 2^16621196 is an apocalyptic number.

It is an amenable number.

16621196 is a deficient number, since it is larger than the sum of its proper divisors (12495556).

16621196 is a wasteful number, since it uses less digits than its factorization.

16621196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240 (or 4238 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 16621196 is about 4076.9101044786. The cubic root of 16621196 is about 255.2039685510.

The spelling of 16621196 in words is "sixteen million, six hundred twenty-one thousand, one hundred ninety-six".