27286628 has 12 divisors (see below), whose sum is σ = 47861100. Its totient is φ = 13612032.

The previous prime is 27286627. The next prime is 27286643. The reversal of 27286628 is 82668272.

It can be written as a sum of positive squares in 2 ways, for example, as 23116864 + 4169764 = 4808^2 + 2042^2 .

It is a super-2 number, since 2×27286628² = 1489120135220768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27286627) 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, 5801 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (3988425).

Almost surely, 2^27286628 is an apocalyptic number.

It is an amenable number.

27286628 is a deficient number, since it is larger than the sum of its proper divisors (20574472).

27286628 is a wasteful number, since it uses less digits than its factorization.

27286628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15646 (or 15644 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 27286628 is about 5223.6604024381. The cubic root of 27286628 is about 301.0578506409.

The spelling of 27286628 in words is "twenty-seven million, two hundred eighty-six thousand, six hundred twenty-eight".