214959389 has 2 divisors, whose sum is σ = 214959390. Its totient is φ = 214959388.

The previous prime is 214959359. The next prime is 214959391. The reversal of 214959389 is 983959412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113252164 + 101707225 = 10642^2 + 10085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214959389 is a prime.

Together with 214959391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214959359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107479694 + 107479695.

It is an arithmetic number, because the mean of its divisors is an integer number (107479695).

Almost surely, 2^214959389 is an apocalyptic number.

It is an amenable number.

214959389 is a deficient number, since it is larger than the sum of its proper divisors (1).

214959389 is an equidigital number, since it uses as much as digits as its factorization.

214959389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The square root of 214959389 is about 14661.4934096087. The cubic root of 214959389 is about 599.0349198290.

The spelling of 214959389 in words is "two hundred fourteen million, nine hundred fifty-nine thousand, three hundred eighty-nine".