28167933 has 16 divisors (see below), whose sum is σ = 39065600. Its totient is φ = 18033840.

The previous prime is 28167917. The next prime is 28167947. The reversal of 28167933 is 33976182.

It is not a de Polignac number, because 28167933 - 2⁴ = 28167917 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28167891 and 28167900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28167913) 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, 11838 + ... + 14016.

It is an arithmetic number, because the mean of its divisors is an integer number (2441600).

Almost surely, 2^28167933 is an apocalyptic number.

It is an amenable number.

28167933 is a deficient number, since it is larger than the sum of its proper divisors (10897667).

28167933 is a wasteful number, since it uses less digits than its factorization.

28167933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352.

The product of its digits is 54432, while the sum is 39.

The square root of 28167933 is about 5307.3470774013. The cubic root of 28167933 is about 304.2647631387.

The spelling of 28167933 in words is "twenty-eight million, one hundred sixty-seven thousand, nine hundred thirty-three".