28223653 has 8 divisors (see below), whose sum is σ = 28800000. Its totient is φ = 27650688.

The previous prime is 28223651. The next prime is 28223659. The reversal of 28223653 is 35632282.

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

It is a cyclic number.

It is not a de Polignac number, because 28223653 - 2¹ = 28223651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28223651) 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 7 ways as a sum of consecutive naturals, for example, 21973 + ... + 23221.

It is an arithmetic number, because the mean of its divisors is an integer number (3600000).

Almost surely, 2^28223653 is an apocalyptic number.

It is an amenable number.

28223653 is a deficient number, since it is larger than the sum of its proper divisors (576347).

28223653 is a wasteful number, since it uses less digits than its factorization.

28223653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its digits is 17280, while the sum is 31.

The square root of 28223653 is about 5312.5938109364. The cubic root of 28223653 is about 304.4652566811.

The spelling of 28223653 in words is "twenty-eight million, two hundred twenty-three thousand, six hundred fifty-three".