27561836 has 12 divisors (see below), whose sum is σ = 48844320. Its totient is φ = 13606320.

The previous prime is 27561823. The next prime is 27561851. The reversal of 27561836 is 63816572.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27561836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43295 + ... + 43926.

It is an arithmetic number, because the mean of its divisors is an integer number (4070360).

Almost surely, 2^27561836 is an apocalyptic number.

It is an amenable number.

27561836 is a deficient number, since it is larger than the sum of its proper divisors (21282484).

27561836 is a wasteful number, since it uses less digits than its factorization.

27561836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87304 (or 87302 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 27561836 is about 5249.9367615239. The cubic root of 27561836 is about 302.0666051944.

The spelling of 27561836 in words is "twenty-seven million, five hundred sixty-one thousand, eight hundred thirty-six".