211679249 has 2 divisors, whose sum is σ = 211679250. Its totient is φ = 211679248.

The previous prime is 211679243. The next prime is 211679287. The reversal of 211679249 is 942976112.

211679249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209323024 + 2356225 = 14468^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 211679249 - 2⁴ = 211679233 is a prime.

It is not a weakly prime, because it can be changed into another prime (211679243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105839624 + 105839625.

It is an arithmetic number, because the mean of its divisors is an integer number (105839625).

Almost surely, 2^211679249 is an apocalyptic number.

It is an amenable number.

211679249 is a deficient number, since it is larger than the sum of its proper divisors (1).

211679249 is an equidigital number, since it uses as much as digits as its factorization.

211679249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 211679249 is about 14549.2009746240. The cubic root of 211679249 is about 595.9723282274.

The spelling of 211679249 in words is "two hundred eleven million, six hundred seventy-nine thousand, two hundred forty-nine".