28224367 has 8 divisors (see below), whose sum is σ = 29926400. Its totient is φ = 26544024.

The previous prime is 28224347. The next prime is 28224373. The reversal of 28224367 is 76342282.

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 28224367 - 2¹⁵ = 28191599 is a prime.

It is a super-2 number, since 2×28224367² = 1593229785101378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28224307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2703 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (3740800).

Almost surely, 2^28224367 is an apocalyptic number.

28224367 is a deficient number, since it is larger than the sum of its proper divisors (1702033).

28224367 is a wasteful number, since it uses less digits than its factorization.

28224367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845.

The product of its digits is 32256, while the sum is 34.

The square root of 28224367 is about 5312.6610093248. The cubic root of 28224367 is about 304.4678241064.

It can be divided in two parts, 282 and 24367, that added together give a square (24649 = 157²).

The spelling of 28224367 in words is "twenty-eight million, two hundred twenty-four thousand, three hundred sixty-seven".