28473807 has 8 divisors (see below), whose sum is σ = 38061360. Its totient is φ = 18934400.

The previous prime is 28473791. The next prime is 28473811. The reversal of 28473807 is 70837482.

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 28473807 - 2⁴ = 28473791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28473607) 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, 10632 + ... + 13037.

It is an arithmetic number, because the mean of its divisors is an integer number (4757670).

Almost surely, 2^28473807 is an apocalyptic number.

28473807 is a deficient number, since it is larger than the sum of its proper divisors (9587553).

28473807 is a wasteful number, since it uses less digits than its factorization.

28473807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24073.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 28473807 is about 5336.0853628854. The cubic root of 28473807 is about 305.3621318995.

The spelling of 28473807 in words is "twenty-eight million, four hundred seventy-three thousand, eight hundred seven".