27746628 has 48 divisors (see below), whose sum is σ = 79685760. Its totient is φ = 7317504.

The previous prime is 27746597. The next prime is 27746629. The reversal of 27746628 is 82664772.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 27746628.

It is not an unprimeable number, because it can be changed into a prime (27746629) 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 15 ways as a sum of consecutive naturals, for example, 11613 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (1660120).

Almost surely, 2^27746628 is an apocalyptic number.

27746628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27746628 is an abundant number, since it is smaller than the sum of its proper divisors (51939132).

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

27746628 is a wasteful number, since it uses less digits than its factorization.

27746628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25436 (or 25434 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 27746628 is about 5267.5068106268. The cubic root of 27746628 is about 302.7401839910.

The spelling of 27746628 in words is "twenty-seven million, seven hundred forty-six thousand, six hundred twenty-eight".