28366834 has 8 divisors (see below), whose sum is σ = 43588188. Its totient is φ = 13837440.

The previous prime is 28366831. The next prime is 28366883. The reversal of 28366834 is 43866382.

It can be written as a sum of positive squares in 2 ways, for example, as 28121809 + 245025 = 5303^2 + 495^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28366831) 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, 172887 + ... + 173050.

Almost surely, 2^28366834 is an apocalyptic number.

28366834 is a deficient number, since it is larger than the sum of its proper divisors (15221354).

28366834 is a wasteful number, since it uses less digits than its factorization.

28366834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345980.

The product of its digits is 165888, while the sum is 40.

The square root of 28366834 is about 5326.0523842711. The cubic root of 28366834 is about 304.9792478938.

The spelling of 28366834 in words is "twenty-eight million, three hundred sixty-six thousand, eight hundred thirty-four".