212326885 has 8 divisors (see below), whose sum is σ = 254917656. Its totient is φ = 169777920.

The previous prime is 212326861. The next prime is 212326913. The reversal of 212326885 is 588623212.

It can be written as a sum of positive squares in 4 ways, for example, as 84953089 + 127373796 = 9217^2 + 11286^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212326885 - 2²³ = 203938277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2097 + ... + 20713.

It is an arithmetic number, because the mean of its divisors is an integer number (31864707).

Almost surely, 2^212326885 is an apocalyptic number.

It is an amenable number.

212326885 is a deficient number, since it is larger than the sum of its proper divisors (42590771).

212326885 is a wasteful number, since it uses less digits than its factorization.

212326885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20903.

The product of its digits is 46080, while the sum is 37.

The square root of 212326885 is about 14571.4407317876. The cubic root of 212326885 is about 596.5795050039.

The spelling of 212326885 in words is "two hundred twelve million, three hundred twenty-six thousand, eight hundred eighty-five".