211970968 has 16 divisors (see below), whose sum is σ = 433577160. Its totient is φ = 96350400.

The previous prime is 211970953. The next prime is 211970971. The reversal of 211970968 is 869079112.

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, 1204293 + ... + 1204468.

Almost surely, 2^211970968 is an apocalyptic number.

It is an amenable number.

211970968 is an abundant number, since it is smaller than the sum of its proper divisors (221606192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211970968 is a wasteful number, since it uses less digits than its factorization.

211970968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408778 (or 2408774 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 211970968 is about 14559.2227814537. Note that the first 3 decimals coincide. The cubic root of 211970968 is about 596.2459759730.

It can be divided in two parts, 211 and 970968, that added together give a palindrome (971179).

The spelling of 211970968 in words is "two hundred eleven million, nine hundred seventy thousand, nine hundred sixty-eight".