27028155 has 48 divisors (see below), whose sum is σ = 54895104. Its totient is φ = 11229120.

The previous prime is 27028121. The next prime is 27028159. The reversal of 27028155 is 55182072.

It is not a de Polignac number, because 27028155 - 2⁶ = 27028091 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27028159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6414 + ... + 9756.

It is an arithmetic number, because the mean of its divisors is an integer number (1143648).

Almost surely, 2^27028155 is an apocalyptic number.

27028155 is an abundant number, since it is smaller than the sum of its proper divisors (27866949).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27028155 is a wasteful number, since it uses less digits than its factorization.

27028155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 27028155 is about 5198.8609329352. The cubic root of 27028155 is about 300.1042415526.

The spelling of 27028155 in words is "twenty-seven million, twenty-eight thousand, one hundred fifty-five".