27699 has 8 divisors (see below), whose sum is σ = 42240. Its totient is φ = 15816.

The previous prime is 27697. The next prime is 27701. The reversal of 27699 is 99672.

It is an interprime number because it is at equal distance from previous prime (27697) and next prime (27701).

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

It is not a de Polignac number, because 27699 - 2¹ = 27697 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27691) 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, 639 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (5280).

2²⁷⁶⁹⁹ is an apocalyptic number.

27699 is a deficient number, since it is larger than the sum of its proper divisors (14541).

27699 is a wasteful number, since it uses less digits than its factorization.

27699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329.

The product of its digits is 6804, while the sum is 33.

The square root of 27699 is about 166.4301655350. The cubic root of 27699 is about 30.2566863620.

The spelling of 27699 in words is "twenty-seven thousand, six hundred ninety-nine".