27857132 has 12 divisors (see below), whose sum is σ = 48883296. Its totient is φ = 13890480.

The previous prime is 27857131. The next prime is 27857147. The reversal of 27857132 is 23175872.

It is a junction number, because it is equal to n+sod(n) for n = 27857092 and 27857101.

It is not an unprimeable number, because it can be changed into a prime (27857131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7844 + ... + 10827.

It is an arithmetic number, because the mean of its divisors is an integer number (4073608).

Almost surely, 2^27857132 is an apocalyptic number.

It is an amenable number.

27857132 is a deficient number, since it is larger than the sum of its proper divisors (21026164).

27857132 is a wasteful number, since it uses less digits than its factorization.

27857132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19048 (or 19046 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 27857132 is about 5277.9856005866. The cubic root of 27857132 is about 303.1415503345.

The spelling of 27857132 in words is "twenty-seven million, eight hundred fifty-seven thousand, one hundred thirty-two".