27222887 has 4 divisors (see below), whose sum is σ = 27260760. Its totient is φ = 27185016.

The previous prime is 27222883. The next prime is 27222901. The reversal of 27222887 is 78822272.

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

It is a cyclic number.

It is not a de Polignac number, because 27222887 - 2² = 27222883 is a prime.

It is a super-2 number, since 2×27222887² = 1482171153229538, 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 27222887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27222883) 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, 17837 + ... + 19302.

It is an arithmetic number, because the mean of its divisors is an integer number (6815190).

Almost surely, 2^27222887 is an apocalyptic number.

27222887 is a deficient number, since it is larger than the sum of its proper divisors (37873).

27222887 is an equidigital number, since it uses as much as digits as its factorization.

27222887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37872.

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

The square root of 27222887 is about 5217.5556537521. Note that the first 3 decimals coincide. The cubic root of 27222887 is about 300.8232462265.

The spelling of 27222887 in words is "twenty-seven million, two hundred twenty-two thousand, eight hundred eighty-seven".