211368671 has 4 divisors (see below), whose sum is σ = 211483752. Its totient is φ = 211253592.

The previous prime is 211368637. The next prime is 211368683. The reversal of 211368671 is 176863112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211368671 - 2²² = 207174367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211368601) by changing a digit.

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, 54740 + ... + 58473.

It is an arithmetic number, because the mean of its divisors is an integer number (52870938).

Almost surely, 2^211368671 is an apocalyptic number.

211368671 is a deficient number, since it is larger than the sum of its proper divisors (115081).

211368671 is a wasteful number, since it uses less digits than its factorization.

211368671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115080.

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

The square root of 211368671 is about 14538.5236870874. The cubic root of 211368671 is about 595.6807132906.

The spelling of 211368671 in words is "two hundred eleven million, three hundred sixty-eight thousand, six hundred seventy-one".