28701873 has 12 divisors (see below), whose sum is σ = 41786368. Its totient is φ = 18983160.

The previous prime is 28701863. The next prime is 28701889. The reversal of 28701873 is 37810782.

It is not a de Polignac number, because 28701873 - 2⁶ = 28701809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28701853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11413 + ... + 13698.

Almost surely, 2^28701873 is an apocalyptic number.

It is an amenable number.

28701873 is a deficient number, since it is larger than the sum of its proper divisors (13084495).

28701873 is a wasteful number, since it uses less digits than its factorization.

28701873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25244 (or 25241 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 28701873 is about 5357.4129017652. The cubic root of 28701873 is about 306.1752488390.

The spelling of 28701873 in words is "twenty-eight million, seven hundred one thousand, eight hundred seventy-three".