4223959 has 2 divisors, whose sum is σ = 4223960. Its totient is φ = 4223958.

The previous prime is 4223911. The next prime is 4223963. The reversal of 4223959 is 9593224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4223959 - 2⁷ = 4223831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111979 + 2111980.

It is an arithmetic number, because the mean of its divisors is an integer number (2111980).

Almost surely, 2^4223959 is an apocalyptic number.

4223959 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223959 is an equidigital number, since it uses as much as digits as its factorization.

4223959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 4223959 is about 2055.2272380445. The cubic root of 4223959 is about 161.6490778092.

The spelling of 4223959 in words is "four million, two hundred twenty-three thousand, nine hundred fifty-nine".