211852863 has 12 divisors (see below), whose sum is σ = 313473888. Its totient is φ = 137790240.

The previous prime is 211852847. The next prime is 211852867. The reversal of 211852863 is 368258112.

It is a happy number.

It is not a de Polignac number, because 211852863 - 2⁴ = 211852847 is a prime.

It is a super-2 number, since 2×211852863² = 89763271122593538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211852867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286695 + ... + 287432.

It is an arithmetic number, because the mean of its divisors is an integer number (26122824).

Almost surely, 2^211852863 is an apocalyptic number.

211852863 is a deficient number, since it is larger than the sum of its proper divisors (101621025).

211852863 is a wasteful number, since it uses less digits than its factorization.

211852863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574174 (or 574171 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 211852863 is about 14555.1661962342. The cubic root of 211852863 is about 596.1352175447.

The spelling of 211852863 in words is "two hundred eleven million, eight hundred fifty-two thousand, eight hundred sixty-three".