27228287 has 8 divisors (see below), whose sum is σ = 27892512. Its totient is φ = 26572000.

The previous prime is 27228277. The next prime is 27228307. The reversal of 27228287 is 78282272.

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

It is a cyclic number.

It is not a de Polignac number, because 27228287 - 2¹⁴ = 27211903 is a prime.

It is a super-2 number, since 2×27228287² = 1482759225908738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27228287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27228217) 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, 5273 + ... + 9069.

It is an arithmetic number, because the mean of its divisors is an integer number (3486564).

Almost surely, 2^27228287 is an apocalyptic number.

27228287 is a deficient number, since it is larger than the sum of its proper divisors (664225).

27228287 is a wasteful number, since it uses less digits than its factorization.

27228287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969.

The product of its digits is 50176, while the sum is 38.

The square root of 27228287 is about 5218.0731117914. The cubic root of 27228287 is about 300.8431355954.

The spelling of 27228287 in words is "twenty-seven million, two hundred twenty-eight thousand, two hundred eighty-seven".