212824971 has 6 divisors (see below), whose sum is σ = 307413860. Its totient is φ = 141883308.

The previous prime is 212824919. The next prime is 212825009. The reversal of 212824971 is 179428212.

It is not a de Polignac number, because 212824971 - 2⁶ = 212824907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212824901) 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 5 ways as a sum of consecutive naturals, for example, 11823601 + ... + 11823618.

Almost surely, 2^212824971 is an apocalyptic number.

212824971 is a deficient number, since it is larger than the sum of its proper divisors (94588889).

212824971 is a wasteful number, since it uses less digits than its factorization.

212824971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23647225 (or 23647222 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 212824971 is about 14588.5218922275. The cubic root of 212824971 is about 597.0456350897.

The spelling of 212824971 in words is "two hundred twelve million, eight hundred twenty-four thousand, nine hundred seventy-one".