27427479 has 8 divisors (see below), whose sum is σ = 36599040. Its totient is φ = 18270456.

The previous prime is 27427453. The next prime is 27427493. The reversal of 27427479 is 97472472.

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

It is not a de Polignac number, because 27427479 - 2²⁰ = 26378903 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 27427479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27426479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2034 + ... + 7680.

It is an arithmetic number, because the mean of its divisors is an integer number (4574880).

Almost surely, 2^27427479 is an apocalyptic number.

27427479 is a deficient number, since it is larger than the sum of its proper divisors (9171561).

27427479 is a wasteful number, since it uses less digits than its factorization.

27427479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269.

The product of its digits is 197568, while the sum is 42.

The square root of 27427479 is about 5237.1250701124. The cubic root of 27427479 is about 301.5749726234.

The spelling of 27427479 in words is "twenty-seven million, four hundred twenty-seven thousand, four hundred seventy-nine".