16886972 has 12 divisors (see below), whose sum is σ = 31107720. Its totient is φ = 7999056.

The previous prime is 16886951. The next prime is 16886977. The reversal of 16886972 is 27968861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16886977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111023 + ... + 111174.

It is an arithmetic number, because the mean of its divisors is an integer number (2592310).

Almost surely, 2^16886972 is an apocalyptic number.

It is an amenable number.

16886972 is a deficient number, since it is larger than the sum of its proper divisors (14220748).

16886972 is a wasteful number, since it uses less digits than its factorization.

16886972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222220 (or 222218 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 16886972 is about 4109.3761083649. The cubic root of 16886972 is about 256.5570349428.

The spelling of 16886972 in words is "sixteen million, eight hundred eighty-six thousand, nine hundred seventy-two".