27688487 has 8 divisors (see below), whose sum is σ = 29010432. Its totient is φ = 26393400.

The previous prime is 27688471. The next prime is 27688501. The reversal of 27688487 is 78488672.

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

It is not a de Polignac number, because 27688487 - 2⁴ = 27688471 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 (27688447) 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, 4589 + ... + 8742.

It is an arithmetic number, because the mean of its divisors is an integer number (3626304).

Almost surely, 2^27688487 is an apocalyptic number.

27688487 is a deficient number, since it is larger than the sum of its proper divisors (1321945).

27688487 is a wasteful number, since it uses less digits than its factorization.

27688487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13429.

The product of its digits is 1204224, while the sum is 50.

The square root of 27688487 is about 5261.9850816968. The cubic root of 27688487 is about 302.5285795915.

The spelling of 27688487 in words is "twenty-seven million, six hundred eighty-eight thousand, four hundred eighty-seven".