27228261 has 8 divisors (see below), whose sum is σ = 37475584. Its totient is φ = 17566560.

The previous prime is 27228259. The next prime is 27228277. The reversal of 27228261 is 16282272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27228261 - 2¹ = 27228259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27228241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146296 + ... + 146481.

It is an arithmetic number, because the mean of its divisors is an integer number (4684448).

Almost surely, 2^27228261 is an apocalyptic number.

It is an amenable number.

27228261 is a deficient number, since it is larger than the sum of its proper divisors (10247323).

27228261 is a wasteful number, since it uses less digits than its factorization.

27228261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292811.

The product of its digits is 5376, while the sum is 30.

The square root of 27228261 is about 5218.0706204497. The cubic root of 27228261 is about 300.8430398381.

The spelling of 27228261 in words is "twenty-seven million, two hundred twenty-eight thousand, two hundred sixty-one".