27120669 has 4 divisors (see below), whose sum is σ = 36160896. Its totient is φ = 18080444.

The previous prime is 27120623. The next prime is 27120671. The reversal of 27120669 is 96602172.

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 27120669 - 2⁸ = 27120413 is a prime.

It is a super-2 number, since 2×27120669² = 1471061374015122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27120689) 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, 4520109 + ... + 4520114.

It is an arithmetic number, because the mean of its divisors is an integer number (9040224).

Almost surely, 2^27120669 is an apocalyptic number.

It is an amenable number.

27120669 is a deficient number, since it is larger than the sum of its proper divisors (9040227).

27120669 is an equidigital number, since it uses as much as digits as its factorization.

27120669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040226.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 27120669 is about 5207.7508580960. The cubic root of 27120669 is about 300.4462580722.

The spelling of 27120669 in words is "twenty-seven million, one hundred twenty thousand, six hundred sixty-nine".