27074645 has 18 divisors (see below), whose sum is σ = 35378658. Its totient is φ = 19881888.

The previous prime is 27074629. The next prime is 27074647. The reversal of 27074645 is 54647072.

It can be written as a sum of positive squares in 3 ways, for example, as 128164 + 26946481 = 358^2 + 5191^2 .

It is not a de Polignac number, because 27074645 - 2⁴ = 27074629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27074647) 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 17 ways as a sum of consecutive naturals, for example, 151166 + ... + 151344.

It is an arithmetic number, because the mean of its divisors is an integer number (1965481).

Almost surely, 2^27074645 is an apocalyptic number.

It is an amenable number.

27074645 is a deficient number, since it is larger than the sum of its proper divisors (8304013).

27074645 is an equidigital number, since it uses as much as digits as its factorization.

27074645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 27074645 is about 5203.3301836420. The cubic root of 27074645 is about 300.2762085810.

The spelling of 27074645 in words is "twenty-seven million, seventy-four thousand, six hundred forty-five".