28333845 has 48 divisors (see below), whose sum is σ = 53414400. Its totient is φ = 13841280.

The previous prime is 28333843. The next prime is 28333871. The reversal of 28333845 is 54833382.

28333845 is a `hidden beast` number, since 283 + 338 + 45 = 666.

It is not a de Polignac number, because 28333845 - 2¹ = 28333843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28333843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25971 + ... + 27039.

It is an arithmetic number, because the mean of its divisors is an integer number (1112800).

Almost surely, 2^28333845 is an apocalyptic number.

It is an amenable number.

28333845 is a deficient number, since it is larger than the sum of its proper divisors (25080555).

28333845 is a wasteful number, since it uses less digits than its factorization.

28333845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1127 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28333845 is about 5322.9545367211. The cubic root of 28333845 is about 304.8609775805.

The spelling of 28333845 in words is "twenty-eight million, three hundred thirty-three thousand, eight hundred forty-five".