27685479 has 8 divisors (see below), whose sum is σ = 36961920. Its totient is φ = 18433016.

The previous prime is 27685457. The next prime is 27685481. The reversal of 27685479 is 97458672.

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

It is a cyclic number.

It is not a de Polignac number, because 27685479 - 2⁵ = 27685447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27685439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3099 + ... + 8060.

It is an arithmetic number, because the mean of its divisors is an integer number (4620240).

Almost surely, 2^27685479 is an apocalyptic number.

27685479 is a deficient number, since it is larger than the sum of its proper divisors (9276441).

27685479 is a wasteful number, since it uses less digits than its factorization.

27685479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11989.

The product of its digits is 846720, while the sum is 48.

The square root of 27685479 is about 5261.6992502423. The cubic root of 27685479 is about 302.5176239077.

The spelling of 27685479 in words is "twenty-seven million, six hundred eighty-five thousand, four hundred seventy-nine".