27227973 has 4 divisors (see below), whose sum is σ = 36303968. Its totient is φ = 18151980.

The previous prime is 27227971. The next prime is 27228001. The reversal of 27227973 is 37972272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27227973 - 2¹ = 27227971 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 (27227971) 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, 4537993 + ... + 4537998.

It is an arithmetic number, because the mean of its divisors is an integer number (9075992).

Almost surely, 2^27227973 is an apocalyptic number.

It is an amenable number.

27227973 is a deficient number, since it is larger than the sum of its proper divisors (9075995).

27227973 is an equidigital number, since it uses as much as digits as its factorization.

27227973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075994.

The product of its digits is 74088, while the sum is 39.

The square root of 27227973 is about 5218.0430239698. The cubic root of 27227973 is about 300.8419791375.

The spelling of 27227973 in words is "twenty-seven million, two hundred twenty-seven thousand, nine hundred seventy-three".