28325823 has 8 divisors (see below), whose sum is σ = 38102448. Its totient is φ = 18716544.

The previous prime is 28325821. The next prime is 28325849. The reversal of 28325823 is 32852382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28325823 - 2¹ = 28325821 is a prime.

It is a super-3 number, since 3×28325823³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28325821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41440 + ... + 42117.

It is an arithmetic number, because the mean of its divisors is an integer number (4762806).

Almost surely, 2^28325823 is an apocalyptic number.

28325823 is a deficient number, since it is larger than the sum of its proper divisors (9776625).

28325823 is a wasteful number, since it uses less digits than its factorization.

28325823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83673.

The product of its digits is 23040, while the sum is 33.

The square root of 28325823 is about 5322.2009544924. The cubic root of 28325823 is about 304.8322036813.

It can be divided in two parts, 283 and 25823, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 28325823 in words is "twenty-eight million, three hundred twenty-five thousand, eight hundred twenty-three".