27456728 has 16 divisors (see below), whose sum is σ = 55441680. Its totient is φ = 12672288.

The previous prime is 27456721. The next prime is 27456761. The reversal of 27456728 is 82765472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27456721) by changing a digit.

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, 131900 + ... + 132107.

It is an arithmetic number, because the mean of its divisors is an integer number (3465105).

Almost surely, 2^27456728 is an apocalyptic number.

It is an amenable number.

27456728 is an abundant number, since it is smaller than the sum of its proper divisors (27984952).

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

27456728 is a wasteful number, since it uses less digits than its factorization.

27456728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264026 (or 264022 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 27456728 is about 5239.9167932325. The cubic root of 27456728 is about 301.6821356224.

The spelling of 27456728 in words is "twenty-seven million, four hundred fifty-six thousand, seven hundred twenty-eight".