211900946 has 16 divisors (see below), whose sum is σ = 325258200. Its totient is φ = 103505280.

The previous prime is 211900907. The next prime is 211900951. The reversal of 211900946 is 649009112.

211900946 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 104550625 + 107350321 = 10225^2 + 10361^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12350 + ... + 24006.

Almost surely, 2^211900946 is an apocalyptic number.

211900946 is a deficient number, since it is larger than the sum of its proper divisors (113357254).

211900946 is a wasteful number, since it uses less digits than its factorization.

211900946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11869.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 211900946 is about 14556.8178528138. The cubic root of 211900946 is about 596.1803145694.

The spelling of 211900946 in words is "two hundred eleven million, nine hundred thousand, nine hundred forty-six".