28633473 has 32 divisors (see below), whose sum is σ = 46588800. Its totient is φ = 17236800.

The previous prime is 28633453. The next prime is 28633487. The reversal of 28633473 is 37433682.

It is not a de Polignac number, because 28633473 - 2⁵ = 28633441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28633453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67803 + ... + 68223.

It is an arithmetic number, because the mean of its divisors is an integer number (1455900).

Almost surely, 2^28633473 is an apocalyptic number.

It is an amenable number.

28633473 is a deficient number, since it is larger than the sum of its proper divisors (17955327).

28633473 is a wasteful number, since it uses less digits than its factorization.

28633473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 664 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 28633473 is about 5351.0254157498. The cubic root of 28633473 is about 305.9318379513.

It can be divided in two parts, 2863 and 3473, that added together give a palindrome (6336).

The spelling of 28633473 in words is "twenty-eight million, six hundred thirty-three thousand, four hundred seventy-three".