27795745 has 8 divisors (see below), whose sum is σ = 34168680. Its totient is φ = 21694080.

The previous prime is 27795743. The next prime is 27795749. The reversal of 27795745 is 54759772.

It can be written as a sum of positive squares in 4 ways, for example, as 3283344 + 24512401 = 1812^2 + 4951^2 .

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

It is not a de Polignac number, because 27795745 - 2¹ = 27795743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27795695 and 27795704.

It is not an unprimeable number, because it can be changed into a prime (27795743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67590 + ... + 67999.

It is an arithmetic number, because the mean of its divisors is an integer number (4271085).

Almost surely, 2^27795745 is an apocalyptic number.

It is an amenable number.

27795745 is a deficient number, since it is larger than the sum of its proper divisors (6372935).

27795745 is a wasteful number, since it uses less digits than its factorization.

27795745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135635.

The product of its digits is 617400, while the sum is 46.

The square root of 27795745 is about 5272.1670117704. The cubic root of 27795745 is about 302.9187152842.

The spelling of 27795745 in words is "twenty-seven million, seven hundred ninety-five thousand, seven hundred forty-five".