28165333 has 4 divisors (see below), whose sum is σ = 32188960. Its totient is φ = 24141708.

The previous prime is 28165327. The next prime is 28165337. The reversal of 28165333 is 33356182.

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 28165333 - 2²¹ = 26068181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28165295 and 28165304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28165337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2011803 + ... + 2011816.

It is an arithmetic number, because the mean of its divisors is an integer number (8047240).

Almost surely, 2^28165333 is an apocalyptic number.

It is an amenable number.

28165333 is a deficient number, since it is larger than the sum of its proper divisors (4023627).

28165333 is an equidigital number, since it uses as much as digits as its factorization.

28165333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023626.

The product of its digits is 12960, while the sum is 31.

The square root of 28165333 is about 5307.1021282806. The cubic root of 28165333 is about 304.2554012788.

The spelling of 28165333 in words is "twenty-eight million, one hundred sixty-five thousand, three hundred thirty-three".