211872086 has 8 divisors (see below), whose sum is σ = 328767120. Its totient is φ = 102283048.

The previous prime is 211872083. The next prime is 211872103. The reversal of 211872086 is 680278112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211872083) 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, 1826426 + ... + 1826541.

It is an arithmetic number, because the mean of its divisors is an integer number (41095890).

Almost surely, 2^211872086 is an apocalyptic number.

211872086 is a deficient number, since it is larger than the sum of its proper divisors (116895034).

211872086 is a wasteful number, since it uses less digits than its factorization.

211872086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652998.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 211872086 is about 14555.8265309806. The cubic root of 211872086 is about 596.1532476066.

The spelling of 211872086 in words is "two hundred eleven million, eight hundred seventy-two thousand, eighty-six".