27387428 has 12 divisors (see below), whose sum is σ = 48108060. Its totient is φ = 13642272.

The previous prime is 27387413. The next prime is 27387433. The reversal of 27387428 is 82478372.

It can be written as a sum of positive squares in 2 ways, for example, as 6666724 + 20720704 = 2582^2 + 4552^2 .

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 3 ways as a sum of consecutive naturals, for example, 11651 + ... + 13802.

It is an arithmetic number, because the mean of its divisors is an integer number (4009005).

Almost surely, 2^27387428 is an apocalyptic number.

It is an amenable number.

27387428 is a deficient number, since it is larger than the sum of its proper divisors (20720632).

27387428 is a wasteful number, since it uses less digits than its factorization.

27387428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25726 (or 25724 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 27387428 is about 5233.2999149676. The cubic root of 27387428 is about 301.4281094094.

The spelling of 27387428 in words is "twenty-seven million, three hundred eighty-seven thousand, four hundred twenty-eight".