27687542 has 4 divisors (see below), whose sum is σ = 41531316. Its totient is φ = 13843770.

The previous prime is 27687529. The next prime is 27687589. The reversal of 27687542 is 24578672.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 27687542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6921884 + ... + 6921887.

It is an arithmetic number, because the mean of its divisors is an integer number (10382829).

Almost surely, 2^27687542 is an apocalyptic number.

27687542 is a deficient number, since it is larger than the sum of its proper divisors (13843774).

27687542 is a wasteful number, since it uses less digits than its factorization.

27687542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13843773.

The product of its digits is 188160, while the sum is 41.

The square root of 27687542 is about 5261.8952859212. The cubic root of 27687542 is about 302.5251378149.

The spelling of 27687542 in words is "twenty-seven million, six hundred eighty-seven thousand, five hundred forty-two".