211867064 has 16 divisors (see below), whose sum is σ = 398304600. Its totient is φ = 105652512.

The previous prime is 211867057. The next prime is 211867067. The reversal of 211867064 is 460768112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211867067) by changing a digit.

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, 31907 + ... + 37970.

Almost surely, 2^211867064 is an apocalyptic number.

It is an amenable number.

211867064 is a deficient number, since it is larger than the sum of its proper divisors (186437536).

211867064 is a wasteful number, since it uses less digits than its factorization.

211867064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70262 (or 70258 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 211867064 is about 14555.6540217195. The cubic root of 211867064 is about 596.1485373664.

The spelling of 211867064 in words is "two hundred eleven million, eight hundred sixty-seven thousand, sixty-four".