214789 has 2 divisors, whose sum is σ = 214790. Its totient is φ = 214788.

The previous prime is 214787. The next prime is 214807. The reversal of 214789 is 987412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148225 + 66564 = 385^2 + 258^2 .

It is a cyclic number.

It is not a de Polignac number, because 214789 - 2¹ = 214787 is a prime.

It is a super-2 number, since 2×214789² = 92268629042, which contains 22 as substring.

Together with 214787, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 214789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107394 + 107395.

It is an arithmetic number, because the mean of its divisors is an integer number (107395).

2²¹⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

214789 is a deficient number, since it is larger than the sum of its proper divisors (1).

214789 is an equidigital number, since it uses as much as digits as its factorization.

214789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 214789 is about 463.4533417724. The cubic root of 214789 is about 59.8876601643.

The spelling of 214789 in words is "two hundred fourteen thousand, seven hundred eighty-nine".