27564036 has 48 divisors (see below), whose sum is σ = 67267200. Its totient is φ = 8773632.

The previous prime is 27563999. The next prime is 27564037. The reversal of 27564036 is 63046572.

It is a junction number, because it is equal to n+sod(n) for n = 27563988 and 27564006.

It is not an unprimeable number, because it can be changed into a prime (27564037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35460 + ... + 36228.

It is an arithmetic number, because the mean of its divisors is an integer number (1401400).

Almost surely, 2^27564036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27564036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33633600).

27564036 is an abundant number, since it is smaller than the sum of its proper divisors (39703164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27564036 is a wasteful number, since it uses less digits than its factorization.

27564036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 27564036 is about 5250.1462836763. The cubic root of 27564036 is about 302.0746420181.

The spelling of 27564036 in words is "twenty-seven million, five hundred sixty-four thousand, thirty-six".