27390770 has 24 divisors (see below), whose sum is σ = 54195372. Its totient is φ = 9959840.

The previous prime is 27390751. The next prime is 27390773. The reversal of 27390770 is 7709372.

It can be written as a sum of positive squares in 2 ways, for example, as 26388769 + 1002001 = 5137^2 + 1001^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27390770.

It is not an unprimeable number, because it can be changed into a prime (27390773) 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 11 ways as a sum of consecutive naturals, for example, 10109 + ... + 12528.

Almost surely, 2^27390770 is an apocalyptic number.

27390770 is a deficient number, since it is larger than the sum of its proper divisors (26804602).

27390770 is a wasteful number, since it uses less digits than its factorization.

27390770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22666 (or 22655 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 35.

The square root of 27390770 is about 5233.6192066294. The cubic root of 27390770 is about 301.4403696792.

The spelling of 27390770 in words is "twenty-seven million, three hundred ninety thousand, seven hundred seventy".