28333047 has 16 divisors (see below), whose sum is σ = 40331520. Its totient is φ = 17640000.

The previous prime is 28333037. The next prime is 28333049. The reversal of 28333047 is 74033382.

It is not a de Polignac number, because 28333047 - 2⁴ = 28333031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28333049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (2520720).

Almost surely, 2^28333047 is an apocalyptic number.

28333047 is a deficient number, since it is larger than the sum of its proper divisors (11998473).

28333047 is a wasteful number, since it uses less digits than its factorization.

28333047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 28333047 is about 5322.8795778225. The cubic root of 28333047 is about 304.8581154987.

The spelling of 28333047 in words is "twenty-eight million, three hundred thirty-three thousand, forty-seven".