28224671 has 8 divisors (see below), whose sum is σ = 29760000. Its totient is φ = 26694360.

The previous prime is 28224661. The next prime is 28224697. The reversal of 28224671 is 17642282.

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 28224671 - 2¹⁰ = 28223647 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 (28224661) 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, 18080 + ... + 19578.

It is an arithmetic number, because the mean of its divisors is an integer number (3720000).

Almost surely, 2^28224671 is an apocalyptic number.

28224671 is a deficient number, since it is larger than the sum of its proper divisors (1535329).

28224671 is a wasteful number, since it uses less digits than its factorization.

28224671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509.

The product of its digits is 10752, while the sum is 32.

The square root of 28224671 is about 5312.6896201453. The cubic root of 28224671 is about 304.4689172267.

The spelling of 28224671 in words is "twenty-eight million, two hundred twenty-four thousand, six hundred seventy-one".