4423861 has 4 divisors (see below), whose sum is σ = 4764172. Its totient is φ = 4083552.

The previous prime is 4423849. The next prime is 4423871. The reversal of 4423861 is 1683244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1943236 + 2480625 = 1394^2 + 1575^2 .

It is a cyclic number.

It is not a de Polignac number, because 4423861 - 2⁵ = 4423829 is a prime.

It is a super-2 number, since 2×4423861² = 39141092294642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170136 + ... + 170161.

It is an arithmetic number, because the mean of its divisors is an integer number (1191043).

Almost surely, 2^4423861 is an apocalyptic number.

It is an amenable number.

4423861 is a deficient number, since it is larger than the sum of its proper divisors (340311).

4423861 is a wasteful number, since it uses less digits than its factorization.

4423861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340310.

The product of its digits is 4608, while the sum is 28.

The square root of 4423861 is about 2103.2976489313. The cubic root of 4423861 is about 164.1599297512.

The spelling of 4423861 in words is "four million, four hundred twenty-three thousand, eight hundred sixty-one".