28224895 has 8 divisors (see below), whose sum is σ = 34785504. Its totient is φ = 21969504.

The previous prime is 28224881. The next prime is 28224901. The reversal of 28224895 is 59842282.

It is a happy number.

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 28224895 - 2¹³ = 28216703 is a prime.

It is a super-2 number, since 2×28224895² = 1593289395522050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76099 + ... + 76468.

It is an arithmetic number, because the mean of its divisors is an integer number (4348188).

Almost surely, 2^28224895 is an apocalyptic number.

28224895 is a deficient number, since it is larger than the sum of its proper divisors (6560609).

28224895 is a wasteful number, since it uses less digits than its factorization.

28224895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152609.

The product of its digits is 92160, while the sum is 40.

The square root of 28224895 is about 5312.7107017040. The cubic root of 28224895 is about 304.4697226787.

The spelling of 28224895 in words is "twenty-eight million, two hundred twenty-four thousand, eight hundred ninety-five".