28675237 has 8 divisors (see below), whose sum is σ = 30497600. Its totient is φ = 26884224.

The previous prime is 28675223. The next prime is 28675261. The reversal of 28675237 is 73257682.

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 28675237 - 2¹⁵ = 28642469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28675237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28675337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5937 + ... + 9622.

It is an arithmetic number, because the mean of its divisors is an integer number (3812200).

Almost surely, 2^28675237 is an apocalyptic number.

It is an amenable number.

28675237 is a deficient number, since it is larger than the sum of its proper divisors (1822363).

28675237 is a wasteful number, since it uses less digits than its factorization.

28675237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15675.

The product of its digits is 141120, while the sum is 40.

The square root of 28675237 is about 5354.9264233974. The cubic root of 28675237 is about 306.0805069616.

The spelling of 28675237 in words is "twenty-eight million, six hundred seventy-five thousand, two hundred thirty-seven".