28324627 has 4 divisors (see below), whose sum is σ = 28343016. Its totient is φ = 28306240.

The previous prime is 28324609. The next prime is 28324633. The reversal of 28324627 is 72642382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28324627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28324592 and 28324601.

It is not an unprimeable number, because it can be changed into a prime (28324927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6649 + ... + 10042.

It is an arithmetic number, because the mean of its divisors is an integer number (7085754).

Almost surely, 2^28324627 is an apocalyptic number.

28324627 is a deficient number, since it is larger than the sum of its proper divisors (18389).

28324627 is a wasteful number, since it uses less digits than its factorization.

28324627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18388.

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

The square root of 28324627 is about 5322.0885937759. The cubic root of 28324627 is about 304.8279133152.

The spelling of 28324627 in words is "twenty-eight million, three hundred twenty-four thousand, six hundred twenty-seven".