28224969 has 8 divisors (see below), whose sum is σ = 38650560. Its totient is φ = 18308016.

The previous prime is 28224967. The next prime is 28224971. The reversal of 28224969 is 96942282.

It is an interprime number because it is at equal distance from previous prime (28224967) and next prime (28224971).

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

It is not a de Polignac number, because 28224969 - 2¹ = 28224967 is a prime.

It is a super-2 number, since 2×28224969² = 1593297750101922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 28224969.

It is not an unprimeable number, because it can be changed into a prime (28224967) 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, 127029 + ... + 127250.

It is an arithmetic number, because the mean of its divisors is an integer number (4831320).

Almost surely, 2^28224969 is an apocalyptic number.

It is an amenable number.

28224969 is a deficient number, since it is larger than the sum of its proper divisors (10425591).

28224969 is a wasteful number, since it uses less digits than its factorization.

28224969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254319.

The product of its digits is 124416, while the sum is 42.

The square root of 28224969 is about 5312.7176661291. The cubic root of 28224969 is about 304.4699887646.

The spelling of 28224969 in words is "twenty-eight million, two hundred twenty-four thousand, nine hundred sixty-nine".