27961132 has 12 divisors (see below), whose sum is σ = 50510656. Its totient is φ = 13529520.

The previous prime is 27961121. The next prime is 27961187. The reversal of 27961132 is 23116972.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 27961094 and 27961103.

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, 112623 + ... + 112870.

Almost surely, 2^27961132 is an apocalyptic number.

It is an amenable number.

27961132 is a deficient number, since it is larger than the sum of its proper divisors (22549524).

27961132 is a wasteful number, since it uses less digits than its factorization.

27961132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225528 (or 225526 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 27961132 is about 5287.8286659082. The cubic root of 27961132 is about 303.5183248129.

The spelling of 27961132 in words is "twenty-seven million, nine hundred sixty-one thousand, one hundred thirty-two".