16972212 has 24 divisors (see below), whose sum is σ = 39849376. Its totient is φ = 5622048.

The previous prime is 16972169. The next prime is 16972223. The reversal of 16972212 is 21227961.

It is a self number, because there is not a number n which added to its sum of digits gives 16972212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2383 + ... + 6294.

Almost surely, 2^16972212 is an apocalyptic number.

16972212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16972212 is an abundant number, since it is smaller than the sum of its proper divisors (22877164).

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

16972212 is a wasteful number, since it uses less digits than its factorization.

16972212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847 (or 8845 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 16972212 is about 4119.7344574620. The cubic root of 16972212 is about 256.9879831068.

The spelling of 16972212 in words is "sixteen million, nine hundred seventy-two thousand, two hundred twelve".