27768045 has 8 divisors (see below), whose sum is σ = 44428896. Its totient is φ = 14809616.

The previous prime is 27768043. The next prime is 27768113. The reversal of 27768045 is 54086772.

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

It is a cyclic number.

It is not a de Polignac number, because 27768045 - 2¹ = 27768043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27767994 and 27768012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27768043) 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, 925587 + ... + 925616.

It is an arithmetic number, because the mean of its divisors is an integer number (5553612).

Almost surely, 2^27768045 is an apocalyptic number.

It is an amenable number.

27768045 is a deficient number, since it is larger than the sum of its proper divisors (16660851).

27768045 is a wasteful number, since it uses less digits than its factorization.

27768045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851211.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 27768045 is about 5269.5393536817. The cubic root of 27768045 is about 302.8180567449.

The spelling of 27768045 in words is "twenty-seven million, seven hundred sixty-eight thousand, forty-five".