27872755 has 4 divisors (see below), whose sum is σ = 33447312. Its totient is φ = 22298200.

The previous prime is 27872731. The next prime is 27872759. The reversal of 27872755 is 55727872.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27872755 - 2¹¹ = 27870707 is a prime.

It is a super-3 number, since 3×27872755³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27872759) 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, 2787271 + ... + 2787280.

It is an arithmetic number, because the mean of its divisors is an integer number (8361828).

Almost surely, 2^27872755 is an apocalyptic number.

27872755 is a deficient number, since it is larger than the sum of its proper divisors (5574557).

27872755 is an equidigital number, since it uses as much as digits as its factorization.

27872755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574556.

The product of its digits is 274400, while the sum is 43.

The square root of 27872755 is about 5279.4654085428. The cubic root of 27872755 is about 303.1982096174.

The spelling of 27872755 in words is "twenty-seven million, eight hundred seventy-two thousand, seven hundred fifty-five".