28333801 has 4 divisors (see below), whose sum is σ = 28507792. Its totient is φ = 28159812.

The previous prime is 28333763. The next prime is 28333817. The reversal of 28333801 is 10833382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28333801 - 2⁷ = 28333673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28333801.

It is not an unprimeable number, because it can be changed into a prime (28333871) 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 3 ways as a sum of consecutive naturals, for example, 86751 + ... + 87076.

It is an arithmetic number, because the mean of its divisors is an integer number (7126948).

Almost surely, 2^28333801 is an apocalyptic number.

It is an amenable number.

28333801 is a deficient number, since it is larger than the sum of its proper divisors (173991).

28333801 is a wasteful number, since it uses less digits than its factorization.

28333801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173990.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 28333801 is about 5322.9504036765. The cubic root of 28333801 is about 304.8608197728.

The spelling of 28333801 in words is "twenty-eight million, three hundred thirty-three thousand, eight hundred one".