4394423 has 4 divisors (see below), whose sum is σ = 4793928. Its totient is φ = 3994920.

The previous prime is 4394419. The next prime is 4394431. The reversal of 4394423 is 3244934.

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

It is a cyclic number.

It is not a de Polignac number, because 4394423 - 2² = 4394419 is a prime.

It is a d-powerful number, because it can be written as 4² + 3⁸ + 9 + 4⁷ + 4¹¹ + 2 + 3¹¹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394413) 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, 199736 + ... + 199757.

It is an arithmetic number, because the mean of its divisors is an integer number (1198482).

Almost surely, 2^4394423 is an apocalyptic number.

4394423 is a deficient number, since it is larger than the sum of its proper divisors (399505).

4394423 is a wasteful number, since it uses less digits than its factorization.

4394423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399504.

The product of its digits is 10368, while the sum is 29.

The square root of 4394423 is about 2096.2879096155. The cubic root of 4394423 is about 163.7949922014.

The spelling of 4394423 in words is "four million, three hundred ninety-four thousand, four hundred twenty-three".