28633873 has 8 divisors (see below), whose sum is σ = 30009600. Its totient is φ = 27269088.

The previous prime is 28633853. The next prime is 28633877. The reversal of 28633873 is 37833682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28633873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28633877) 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, 2893 + ... + 8101.

It is an arithmetic number, because the mean of its divisors is an integer number (3751200).

Almost surely, 2^28633873 is an apocalyptic number.

28633873 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28633873 is a deficient number, since it is larger than the sum of its proper divisors (1375727).

28633873 is a wasteful number, since it uses less digits than its factorization.

28633873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471.

The product of its digits is 145152, while the sum is 40.

The square root of 28633873 is about 5351.0627916331. The cubic root of 28633873 is about 305.9332625330.

The spelling of 28633873 in words is "twenty-eight million, six hundred thirty-three thousand, eight hundred seventy-three".