4428523 has 4 divisors (see below), whose sum is σ = 4831128. Its totient is φ = 4025920.

The previous prime is 4428511. The next prime is 4428553. The reversal of 4428523 is 3258244.

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 4428523 - 2⁵ = 4428491 is a prime.

It is a super-2 number, since 2×4428523² = 39223631923058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4428491 and 4428500.

It is not an unprimeable number, because it can be changed into a prime (4428553) 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, 201286 + ... + 201307.

It is an arithmetic number, because the mean of its divisors is an integer number (1207782).

Almost surely, 2^4428523 is an apocalyptic number.

4428523 is a deficient number, since it is larger than the sum of its proper divisors (402605).

4428523 is a wasteful number, since it uses less digits than its factorization.

4428523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402604.

The product of its digits is 7680, while the sum is 28.

The square root of 4428523 is about 2104.4056167954. The cubic root of 4428523 is about 164.2175750911.

The spelling of 4428523 in words is "four million, four hundred twenty-eight thousand, five hundred twenty-three".