4213889 has 2 divisors, whose sum is σ = 4213890. Its totient is φ = 4213888.

The previous prime is 4213843. The next prime is 4213897. The reversal of 4213889 is 9883124.

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., 4060225 + 153664 = 2015^2 + 392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4213889 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4213189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106944 + 2106945.

It is an arithmetic number, because the mean of its divisors is an integer number (2106945).

Almost surely, 2^4213889 is an apocalyptic number.

It is an amenable number.

4213889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213889 is an equidigital number, since it uses as much as digits as its factorization.

4213889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 4213889 is about 2052.7759254239. The cubic root of 4213889 is about 161.5205174149.

It can be divided in two parts, 42 and 13889, that added together give a palindrome (13931).

The spelling of 4213889 in words is "four million, two hundred thirteen thousand, eight hundred eighty-nine".