2143829 has 2 divisors, whose sum is σ = 2143830. Its totient is φ = 2143828.

The previous prime is 2143793. The next prime is 2143831. The reversal of 2143829 is 9283412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1500625 + 643204 = 1225^2 + 802^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143829 - 2⁸ = 2143573 is a prime.

Together with 2143831, 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 (2143859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071914 + 1071915.

It is an arithmetic number, because the mean of its divisors is an integer number (1071915).

2^2143829 is an apocalyptic number.

It is an amenable number.

2143829 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143829 is an equidigital number, since it uses as much as digits as its factorization.

2143829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 2143829 is about 1464.1820242033. The cubic root of 2143829 is about 128.9426863159.

The spelling of 2143829 in words is "two million, one hundred forty-three thousand, eight hundred twenty-nine".