27955656 has 24 divisors (see below), whose sum is σ = 75713430. Its totient is φ = 9318528.

The previous prime is 27955643. The next prime is 27955693. The reversal of 27955656 is 65655972.

It can be written as a sum of positive squares in only one way, i.e., 14516100 + 13439556 = 3810^2 + 3666^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 194065 + ... + 194208.

Almost surely, 2^27955656 is an apocalyptic number.

It is an amenable number.

27955656 is an abundant number, since it is smaller than the sum of its proper divisors (47757774).

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

27955656 is a wasteful number, since it uses less digits than its factorization.

27955656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388285 (or 388278 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 27955656 is about 5287.3108476805. The cubic root of 27955656 is about 303.4985095105.

The spelling of 27955656 in words is "twenty-seven million, nine hundred fifty-five thousand, six hundred fifty-six".