212912884 has 6 divisors (see below), whose sum is σ = 372597554. Its totient is φ = 106456440.

The previous prime is 212912873. The next prime is 212912897. The reversal of 212912884 is 488219212.

It is a happy number.

212912884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 202492900 + 10419984 = 14230^2 + 3228^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26614107 + ... + 26614114.

Almost surely, 2^212912884 is an apocalyptic number.

It is an amenable number.

212912884 is a deficient number, since it is larger than the sum of its proper divisors (159684670).

212912884 is a wasteful number, since it uses less digits than its factorization.

212912884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53228225 (or 53228223 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 212912884 is about 14591.5346691155. The cubic root of 212912884 is about 597.1278322854.

It can be divided in two parts, 2129128 and 84, that added together give a palindrome (2129212).

The spelling of 212912884 in words is "two hundred twelve million, nine hundred twelve thousand, eight hundred eighty-four".