27691682 has 10 divisors (see below), whose sum is σ = 42229815. Its totient is φ = 13618860.

The previous prime is 27691679. The next prime is 27691693. The reversal of 27691682 is 28619672.

It can be written as a sum of positive squares in 3 ways, for example, as 4661281 + 23030401 = 2159^2 + 4799^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3721.

It is a Duffinian number.

Its product of digits (72576) is a multiple of the sum of its prime divisors (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 453932 + ... + 453992.

Almost surely, 2^27691682 is an apocalyptic number.

27691682 is a deficient number, since it is larger than the sum of its proper divisors (14538133).

27691682 is an frugal number, since it uses more digits than its factorization.

27691682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 63 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 27691682 is about 5262.2886655903. The cubic root of 27691682 is about 302.5402154944.

The spelling of 27691682 in words is "twenty-seven million, six hundred ninety-one thousand, six hundred eighty-two".