28864366 has 16 divisors (see below), whose sum is σ = 44758224. Its totient is φ = 13950144.

The previous prime is 28864361. The next prime is 28864421. The reversal of 28864366 is 66346882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28864361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10866 + ... + 13258.

It is an arithmetic number, because the mean of its divisors is an integer number (2797389).

Almost surely, 2^28864366 is an apocalyptic number.

28864366 is a deficient number, since it is larger than the sum of its proper divisors (15893858).

28864366 is a wasteful number, since it uses less digits than its factorization.

28864366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its digits is 331776, while the sum is 43.

The square root of 28864366 is about 5372.5567470246. The cubic root of 28864366 is about 306.7519561659.

The spelling of 28864366 in words is "twenty-eight million, eight hundred sixty-four thousand, three hundred sixty-six".