27851328 has 42 divisors (see below), whose sum is σ = 79832454. Its totient is φ = 9283584.

The previous prime is 27851323. The next prime is 27851381. The reversal of 27851328 is 82315872.

It can be written as a sum of positive squares in only one way, i.e., 17040384 + 10810944 = 4128^2 + 3288^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27851292 and 27851301.

It is not an unprimeable number, because it can be changed into a prime (27851323) 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 5 ways as a sum of consecutive naturals, for example, 23601 + ... + 24752.

Almost surely, 2^27851328 is an apocalyptic number.

It is an amenable number.

27851328 is an abundant number, since it is smaller than the sum of its proper divisors (51981126).

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

27851328 is a wasteful number, since it uses less digits than its factorization.

27851328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48371 (or 48358 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 27851328 is about 5277.4357409636. The cubic root of 27851328 is about 303.1204958129.

The spelling of 27851328 in words is "twenty-seven million, eight hundred fifty-one thousand, three hundred twenty-eight".