28266855 has 16 divisors (see below), whose sum is σ = 45326304. Its totient is φ = 15042560.

The previous prime is 28266829. The next prime is 28266857. The reversal of 28266855 is 55866282.

It is not a de Polignac number, because 28266855 - 2⁷ = 28266727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28266857) 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, 6007 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (2832894).

Almost surely, 2^28266855 is an apocalyptic number.

28266855 is a deficient number, since it is larger than the sum of its proper divisors (17059449).

28266855 is a wasteful number, since it uses less digits than its factorization.

28266855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146.

The product of its digits is 230400, while the sum is 42.

The square root of 28266855 is about 5316.6582549568. The cubic root of 28266855 is about 304.6205260026.

The spelling of 28266855 in words is "twenty-eight million, two hundred sixty-six thousand, eight hundred fifty-five".