28675807 has 8 divisors (see below), whose sum is σ = 30242160. Its totient is φ = 27115200.

The previous prime is 28675771. The next prime is 28675811. The reversal of 28675807 is 70857682.

It is a happy number.

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 28675807 - 2¹¹ = 28673759 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 (28675817) 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, 12243 + ... + 14395.

It is an arithmetic number, because the mean of its divisors is an integer number (3780270).

Almost surely, 2^28675807 is an apocalyptic number.

28675807 is a deficient number, since it is larger than the sum of its proper divisors (1566353).

28675807 is a wasteful number, since it uses less digits than its factorization.

28675807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 28675807 is about 5354.9796451527. The cubic root of 28675807 is about 306.0825350150.

The spelling of 28675807 in words is "twenty-eight million, six hundred seventy-five thousand, eight hundred seven".