27754745 has 8 divisors (see below), whose sum is σ = 34118280. Its totient is φ = 21662080.

The previous prime is 27754723. The next prime is 27754747. The reversal of 27754745 is 54745772.

It can be written as a sum of positive squares in 4 ways, for example, as 1087849 + 26666896 = 1043^2 + 5164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-27754745 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (27754747) 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 7 ways as a sum of consecutive naturals, for example, 67490 + ... + 67899.

It is an arithmetic number, because the mean of its divisors is an integer number (4264785).

Almost surely, 2^27754745 is an apocalyptic number.

It is an amenable number.

27754745 is a deficient number, since it is larger than the sum of its proper divisors (6363535).

27754745 is a wasteful number, since it uses less digits than its factorization.

27754745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135435.

The product of its digits is 274400, while the sum is 41.

The square root of 27754745 is about 5268.2772326445. The cubic root of 27754745 is about 302.7697023224.

The spelling of 27754745 in words is "twenty-seven million, seven hundred fifty-four thousand, seven hundred forty-five".