27228855 has 32 divisors (see below), whose sum is σ = 45439488. Its totient is φ = 13910400.

The previous prime is 27228853. The next prime is 27228857. The reversal of 27228855 is 55882272.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27228853) and next prime (27228857).

It is not a de Polignac number, because 27228855 - 2¹ = 27228853 is a prime.

It is a super-2 number, since 2×27228855² = 1482821089222050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27228853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39060 + ... + 39750.

It is an arithmetic number, because the mean of its divisors is an integer number (1419984).

Almost surely, 2^27228855 is an apocalyptic number.

27228855 is a deficient number, since it is larger than the sum of its proper divisors (18210633).

27228855 is a wasteful number, since it uses less digits than its factorization.

27228855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its digits is 89600, while the sum is 39.

The square root of 27228855 is about 5218.1275377285. The cubic root of 27228855 is about 300.8452275095.

The spelling of 27228855 in words is "twenty-seven million, two hundred twenty-eight thousand, eight hundred fifty-five".