27905132 has 12 divisors (see below), whose sum is σ = 49105056. Its totient is φ = 13875120.

The previous prime is 27905123. The next prime is 27905147. The reversal of 27905132 is 23150972.

It is a junction number, because it is equal to n+sod(n) for n = 27905095 and 27905104.

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, 18548 + ... + 19995.

It is an arithmetic number, because the mean of its divisors is an integer number (4092088).

Almost surely, 2^27905132 is an apocalyptic number.

It is an amenable number.

27905132 is a deficient number, since it is larger than the sum of its proper divisors (21199924).

27905132 is a wasteful number, since it uses less digits than its factorization.

27905132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38728 (or 38726 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 27905132 is about 5282.5308328490. The cubic root of 27905132 is about 303.3155625650.

The spelling of 27905132 in words is "twenty-seven million, nine hundred five thousand, one hundred thirty-two".