5428123 has 4 divisors (see below), whose sum is σ = 5455600. Its totient is φ = 5400648.

The previous prime is 5428109. The next prime is 5428127. The reversal of 5428123 is 3218245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3218245 = 5 ⋅643649.

It is a cyclic number.

It is not a de Polignac number, because 5428123 - 2¹⁷ = 5297051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5428127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13440 + ... + 13837.

It is an arithmetic number, because the mean of its divisors is an integer number (1363900).

Almost surely, 2^5428123 is an apocalyptic number.

5428123 is a deficient number, since it is larger than the sum of its proper divisors (27477).

5428123 is a wasteful number, since it uses less digits than its factorization.

5428123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27476.

The product of its digits is 1920, while the sum is 25.

The square root of 5428123 is about 2329.8332558361. The cubic root of 5428123 is about 175.7451006204.

The spelling of 5428123 in words is "five million, four hundred twenty-eight thousand, one hundred twenty-three".