212696684 has 24 divisors (see below), whose sum is σ = 382080048. Its totient is φ = 103541760.

The previous prime is 212696681. The next prime is 212696689. The reversal of 212696684 is 486696212.

It is not an unprimeable number, because it can be changed into a prime (212696681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104444 + ... + 106460.

It is an arithmetic number, because the mean of its divisors is an integer number (15920002).

Almost surely, 2^212696684 is an apocalyptic number.

It is an amenable number.

212696684 is a deficient number, since it is larger than the sum of its proper divisors (169383364).

212696684 is a wasteful number, since it uses less digits than its factorization.

212696684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705 (or 2703 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 212696684 is about 14584.1243823549. The cubic root of 212696684 is about 596.9256482482.

The spelling of 212696684 in words is "two hundred twelve million, six hundred ninety-six thousand, six hundred eighty-four".