212827005 has 24 divisors (see below), whose sum is σ = 369646368. Its totient is φ = 113278176.

The previous prime is 212827003. The next prime is 212827007. The reversal of 212827005 is 500728212.

It is an interprime number because it is at equal distance from previous prime (212827003) and next prime (212827007).

It is not a de Polignac number, because 212827005 - 2¹ = 212827003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212827005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212827003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19014 + ... + 28056.

It is an arithmetic number, because the mean of its divisors is an integer number (15401932).

Almost surely, 2^212827005 is an apocalyptic number.

It is an amenable number.

212827005 is a deficient number, since it is larger than the sum of its proper divisors (156819363).

212827005 is a wasteful number, since it uses less digits than its factorization.

212827005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9577 (or 9574 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 212827005 is about 14588.5916044010. The cubic root of 212827005 is about 597.0475371017.

The spelling of 212827005 in words is "two hundred twelve million, eight hundred twenty-seven thousand, five".