27481479 has 8 divisors (see below), whose sum is σ = 36669312. Its totient is φ = 18307320.

The previous prime is 27481453. The next prime is 27481499. The reversal of 27481479 is 97418472.

It is a happy number.

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

It is not a de Polignac number, because 27481479 - 2¹² = 27477383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27481479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27481409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2992 + ... + 7994.

It is an arithmetic number, because the mean of its divisors is an integer number (4583664).

Almost surely, 2^27481479 is an apocalyptic number.

27481479 is a deficient number, since it is larger than the sum of its proper divisors (9187833).

27481479 is a wasteful number, since it uses less digits than its factorization.

27481479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837.

The product of its digits is 112896, while the sum is 42.

The square root of 27481479 is about 5242.2780353583. The cubic root of 27481479 is about 301.7727593359.

The spelling of 27481479 in words is "twenty-seven million, four hundred eighty-one thousand, four hundred seventy-nine".