28233965 has 8 divisors (see below), whose sum is σ = 35049240. Its totient is φ = 21808192.

The previous prime is 28233941. The next prime is 28233977. The reversal of 28233965 is 56933282.

It can be written as a sum of positive squares in 4 ways, for example, as 996004 + 27237961 = 998^2 + 5219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28233965 - 2¹⁸ = 27971821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97214 + ... + 97503.

It is an arithmetic number, because the mean of its divisors is an integer number (4381155).

Almost surely, 2^28233965 is an apocalyptic number.

It is an amenable number.

28233965 is a deficient number, since it is larger than the sum of its proper divisors (6815275).

28233965 is a wasteful number, since it uses less digits than its factorization.

28233965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194751.

The product of its digits is 77760, while the sum is 38.

The square root of 28233965 is about 5313.5642463416. The cubic root of 28233965 is about 304.5023327160.

The spelling of 28233965 in words is "twenty-eight million, two hundred thirty-three thousand, nine hundred sixty-five".