214866287 has 2 divisors, whose sum is σ = 214866288. Its totient is φ = 214866286.

The previous prime is 214866283. The next prime is 214866329. The reversal of 214866287 is 782668412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214866287 - 2² = 214866283 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214866283) 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 as a sum of consecutive naturals, namely, 107433143 + 107433144.

It is an arithmetic number, because the mean of its divisors is an integer number (107433144).

Almost surely, 2^214866287 is an apocalyptic number.

214866287 is a deficient number, since it is larger than the sum of its proper divisors (1).

214866287 is an equidigital number, since it uses as much as digits as its factorization.

214866287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 44.

The square root of 214866287 is about 14658.3180140151. The cubic root of 214866287 is about 598.9484237966.

The spelling of 214866287 in words is "two hundred fourteen million, eight hundred sixty-six thousand, two hundred eighty-seven".