212893912 has 32 divisors (see below), whose sum is σ = 497675520. Its totient is φ = 82945440.

The previous prime is 212893909. The next prime is 212893913. The reversal of 212893912 is 219398212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212893913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172188 + ... + 173419.

It is an arithmetic number, because the mean of its divisors is an integer number (15552360).

Almost surely, 2^212893912 is an apocalyptic number.

212893912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212893912 is an abundant number, since it is smaller than the sum of its proper divisors (284781608).

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

212893912 is a wasteful number, since it uses less digits than its factorization.

212893912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345631 (or 345627 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 212893912 is about 14590.8845516644. The cubic root of 212893912 is about 597.1100956952.

The spelling of 212893912 in words is "two hundred twelve million, eight hundred ninety-three thousand, nine hundred twelve".