27645393 has 8 divisors (see below), whose sum is σ = 36908608. Its totient is φ = 18406224.

The previous prime is 27645377. The next prime is 27645403. The reversal of 27645393 is 39354672.

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

It is not a de Polignac number, because 27645393 - 2⁴ = 27645377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27645493) 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, 3130 + ... + 8067.

It is an arithmetic number, because the mean of its divisors is an integer number (4613576).

Almost surely, 2^27645393 is an apocalyptic number.

It is an amenable number.

27645393 is a deficient number, since it is larger than the sum of its proper divisors (9263215).

27645393 is a wasteful number, since it uses less digits than its factorization.

27645393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12023.

The product of its digits is 136080, while the sum is 39.

The square root of 27645393 is about 5257.8886446938. Note that the first 3 decimals coincide. The cubic root of 27645393 is about 302.3715475841.

The spelling of 27645393 in words is "twenty-seven million, six hundred forty-five thousand, three hundred ninety-three".