211794164 has 12 divisors (see below), whose sum is σ = 370795488. Its totient is φ = 105852600.

The previous prime is 211794157. The next prime is 211794199. The reversal of 211794164 is 461497112.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1079 + ... + 20609.

It is an arithmetic number, because the mean of its divisors is an integer number (30899624).

Almost surely, 2^211794164 is an apocalyptic number.

It is an amenable number.

211794164 is a deficient number, since it is larger than the sum of its proper divisors (159001324).

211794164 is a wasteful number, since it uses less digits than its factorization.

211794164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22246 (or 22244 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 211794164 is about 14553.1496247376. The cubic root of 211794164 is about 596.0801545276.

The spelling of 211794164 in words is "two hundred eleven million, seven hundred ninety-four thousand, one hundred sixty-four".