27683631 has 6 divisors (see below), whose sum is σ = 39987480. Its totient is φ = 18455748.

The previous prime is 27683573. The next prime is 27683639. The reversal of 27683631 is 13638672.

It is a happy number.

It is not a de Polignac number, because 27683631 - 2¹⁰ = 27682607 is a prime.

It is a super-2 number, since 2×27683631² = 1532766850688322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27683639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1537971 + ... + 1537988.

It is an arithmetic number, because the mean of its divisors is an integer number (6664580).

Almost surely, 2^27683631 is an apocalyptic number.

27683631 is a deficient number, since it is larger than the sum of its proper divisors (12303849).

27683631 is a wasteful number, since it uses less digits than its factorization.

27683631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075965 (or 3075962 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 27683631 is about 5261.5236386431. The cubic root of 27683631 is about 302.5108927617.

The spelling of 27683631 in words is "twenty-seven million, six hundred eighty-three thousand, six hundred thirty-one".