4239855 has 12 divisors (see below), whose sum is σ = 7349160. Its totient is φ = 2261232.

The previous prime is 4239853. The next prime is 4239857. The reversal of 4239855 is 5589324.

It is an interprime number because it is at equal distance from previous prime (4239853) and next prime (4239857).

It is not a de Polignac number, because 4239855 - 2¹ = 4239853 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47065 + ... + 47154.

It is an arithmetic number, because the mean of its divisors is an integer number (612430).

Almost surely, 2^4239855 is an apocalyptic number.

4239855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4239855 is a deficient number, since it is larger than the sum of its proper divisors (3109305).

4239855 is a wasteful number, since it uses less digits than its factorization.

4239855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94230 (or 94227 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 4239855 is about 2059.0908187839. The cubic root of 4239855 is about 161.8516016428.

The spelling of 4239855 in words is "four million, two hundred thirty-nine thousand, eight hundred fifty-five".