28735227 has 6 divisors (see below), whose sum is σ = 41506452. Its totient is φ = 19156812.

The previous prime is 28735193. The next prime is 28735237. The reversal of 28735227 is 72253782.

It is a happy number.

28735227 is a `hidden beast` number, since 287 + 352 + 27 = 666.

It is not a de Polignac number, because 28735227 - 2¹⁴ = 28718843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28735191 and 28735200.

It is not an unprimeable number, because it can be changed into a prime (28735237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1596393 + ... + 1596410.

It is an arithmetic number, because the mean of its divisors is an integer number (6917742).

Almost surely, 2^28735227 is an apocalyptic number.

28735227 is a deficient number, since it is larger than the sum of its proper divisors (12771225).

28735227 is a wasteful number, since it uses less digits than its factorization.

28735227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192809 (or 3192806 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 28735227 is about 5360.5248810168. The cubic root of 28735227 is about 306.2938034248.

It can be divided in two parts, 2873 and 5227, that added together give a square (8100 = 90²).

The spelling of 28735227 in words is "twenty-eight million, seven hundred thirty-five thousand, two hundred twenty-seven".