27243197 has 8 divisors (see below), whose sum is σ = 29253312. Its totient is φ = 25278400.

The previous prime is 27243143. The next prime is 27243217. The reversal of 27243197 is 79134272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27243197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27243107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10079 + ... + 12492.

It is an arithmetic number, because the mean of its divisors is an integer number (3656664).

Almost surely, 2^27243197 is an apocalyptic number.

It is an amenable number.

27243197 is a deficient number, since it is larger than the sum of its proper divisors (2010115).

27243197 is a wasteful number, since it uses less digits than its factorization.

27243197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22659.

The product of its digits is 21168, while the sum is 35.

The square root of 27243197 is about 5219.5016045596. The cubic root of 27243197 is about 300.8980387022.

The spelling of 27243197 in words is "twenty-seven million, two hundred forty-three thousand, one hundred ninety-seven".