27907045 has 8 divisors (see below), whose sum is σ = 33785496. Its totient is φ = 22127616.

The previous prime is 27907039. The next prime is 27907057. The reversal of 27907045 is 54070972.

It can be written as a sum of positive squares in 4 ways, for example, as 804609 + 27102436 = 897^2 + 5206^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27907045 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27907045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24132 + ... + 25261.

It is an arithmetic number, because the mean of its divisors is an integer number (4223187).

Almost surely, 2^27907045 is an apocalyptic number.

It is an amenable number.

27907045 is a deficient number, since it is larger than the sum of its proper divisors (5878451).

27907045 is a wasteful number, since it uses less digits than its factorization.

27907045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49511.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 27907045 is about 5282.7118982583. The cubic root of 27907045 is about 303.3224935412.

The spelling of 27907045 in words is "twenty-seven million, nine hundred seven thousand, forty-five".