27432245 has 4 divisors (see below), whose sum is σ = 32918700. Its totient is φ = 21945792.

The previous prime is 27432221. The next prime is 27432253. The reversal of 27432245 is 54223472.

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 13823524 + 13608721 = 3718^2 + 3689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27432245 is a prime.

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, 2743220 + ... + 2743229.

It is an arithmetic number, because the mean of its divisors is an integer number (8229675).

Almost surely, 2^27432245 is an apocalyptic number.

It is an amenable number.

27432245 is a deficient number, since it is larger than the sum of its proper divisors (5486455).

27432245 is an equidigital number, since it uses as much as digits as its factorization.

27432245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486454.

The product of its digits is 13440, while the sum is 29.

The square root of 27432245 is about 5237.5800709870. The cubic root of 27432245 is about 301.5924395718.

The spelling of 27432245 in words is "twenty-seven million, four hundred thirty-two thousand, two hundred forty-five".