212974868 has 12 divisors (see below), whose sum is σ = 372808212. Its totient is φ = 106458240.

The previous prime is 212974859. The next prime is 212974873. The reversal of 212974868 is 868479212.

It is a happy number.

212974868 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 2 ways, for example, as 100360324 + 112614544 = 10018^2 + 10612^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24746 + ... + 32222.

It is an arithmetic number, because the mean of its divisors is an integer number (31067351).

Almost surely, 2^212974868 is an apocalyptic number.

It is an amenable number.

212974868 is a deficient number, since it is larger than the sum of its proper divisors (159833344).

212974868 is a wasteful number, since it uses less digits than its factorization.

212974868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14602 (or 14600 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 212974868 is about 14593.6584857944. The cubic root of 212974868 is about 597.1857726970.

The spelling of 212974868 in words is "two hundred twelve million, nine hundred seventy-four thousand, eight hundred sixty-eight".