27664465 has 8 divisors (see below), whose sum is σ = 33246720. Its totient is φ = 22098672.

The previous prime is 27664453. The next prime is 27664541. The reversal of 27664465 is 56446672.

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 27664465 - 2⁵ = 27664433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49 + ... + 7438.

It is an arithmetic number, because the mean of its divisors is an integer number (4155840).

Almost surely, 2^27664465 is an apocalyptic number.

It is an amenable number.

27664465 is a deficient number, since it is larger than the sum of its proper divisors (5582255).

27664465 is an equidigital number, since it uses as much as digits as its factorization.

27664465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8231.

The product of its digits is 241920, while the sum is 40.

The square root of 27664465 is about 5259.7019877556. The cubic root of 27664465 is about 302.4410649478.

The spelling of 27664465 in words is "twenty-seven million, six hundred sixty-four thousand, four hundred sixty-five".