16993212 has 24 divisors (see below), whose sum is σ = 40723536. Its totient is φ = 5511168.

The previous prime is 16993199. The next prime is 16993237. The reversal of 16993212 is 21239961.

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, 18693 + ... + 19580.

It is an arithmetic number, because the mean of its divisors is an integer number (1696814).

Almost surely, 2^16993212 is an apocalyptic number.

16993212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16993212 is an abundant number, since it is smaller than the sum of its proper divisors (23730324).

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

16993212 is a wasteful number, since it uses less digits than its factorization.

16993212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38317 (or 38315 counting only the distinct ones).

The product of its digits is 5832, while the sum is 33.

The square root of 16993212 is about 4122.2823775186. The cubic root of 16993212 is about 257.0939312560.

It can be divided in two parts, 169932 and 12, that multiplied together give a square (2039184 = 1428²).

The spelling of 16993212 in words is "sixteen million, nine hundred ninety-three thousand, two hundred twelve".