211972952 has 16 divisors (see below), whose sum is σ = 407143800. Its totient is φ = 103401280.

The previous prime is 211972939. The next prime is 211972967. The reversal of 211972952 is 259279112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322802 + ... + 323457.

Almost surely, 2^211972952 is an apocalyptic number.

It is an amenable number.

211972952 is a deficient number, since it is larger than the sum of its proper divisors (195170848).

211972952 is a wasteful number, since it uses less digits than its factorization.

211972952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646306 (or 646302 counting only the distinct ones).

The product of its digits is 22680, while the sum is 38.

The square root of 211972952 is about 14559.2909167995. The cubic root of 211972952 is about 596.2478362094.

The spelling of 211972952 in words is "two hundred eleven million, nine hundred seventy-two thousand, nine hundred fifty-two".