28826223 has 8 divisors (see below), whose sum is σ = 39160368. Its totient is φ = 18854784.

The previous prime is 28826209. The next prime is 28826227. The reversal of 28826223 is 32262882.

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

It is not a de Polignac number, because 28826223 - 2⁴ = 28826207 is a prime.

It is a super-2 number, since 2×28826223² = 1661902264891458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28826227) 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, 90490 + ... + 90807.

It is an arithmetic number, because the mean of its divisors is an integer number (4895046).

Almost surely, 2^28826223 is an apocalyptic number.

28826223 is a deficient number, since it is larger than the sum of its proper divisors (10334145).

28826223 is a wasteful number, since it uses less digits than its factorization.

28826223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181353.

The product of its digits is 18432, while the sum is 33.

The square root of 28826223 is about 5369.0057738840. The cubic root of 28826223 is about 306.6167768295.

The spelling of 28826223 in words is "twenty-eight million, eight hundred twenty-six thousand, two hundred twenty-three".