27221069 has 4 divisors (see below), whose sum is σ = 28099200. Its totient is φ = 26342940.

The previous prime is 27221059. The next prime is 27221087. The reversal of 27221069 is 96012272.

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 a cyclic number.

It is not a de Polignac number, because 27221069 - 2²⁰ = 26172493 is a prime.

It is a super-2 number, since 2×27221069² = 1481973195005522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27221039) 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, 439019 + ... + 439080.

It is an arithmetic number, because the mean of its divisors is an integer number (7024800).

Almost surely, 2^27221069 is an apocalyptic number.

It is an amenable number.

27221069 is a deficient number, since it is larger than the sum of its proper divisors (878131).

27221069 is an equidigital number, since it uses as much as digits as its factorization.

27221069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878130.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 27221069 is about 5217.3814313312. The cubic root of 27221069 is about 300.8165495471.

The spelling of 27221069 in words is "twenty-seven million, two hundred twenty-one thousand, sixty-nine".