27192005 has 4 divisors (see below), whose sum is σ = 32630412. Its totient is φ = 21753600.

The previous prime is 27191999. The next prime is 27192013. The reversal of 27192005 is 50029172.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7540516 + 19651489 = 2746^2 + 4433^2 .

It is not a de Polignac number, because 27192005 - 2¹⁰ = 27190981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2719196 + ... + 2719205.

It is an arithmetic number, because the mean of its divisors is an integer number (8157603).

Almost surely, 2^27192005 is an apocalyptic number.

It is an amenable number.

27192005 is a deficient number, since it is larger than the sum of its proper divisors (5438407).

27192005 is an equidigital number, since it uses as much as digits as its factorization.

27192005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438406.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 27192005 is about 5214.5953821941. The cubic root of 27192005 is about 300.7094505734.

The spelling of 27192005 in words is "twenty-seven million, one hundred ninety-two thousand, five".