27378387 has 12 divisors (see below), whose sum is σ = 39626704. Its totient is φ = 18215280.

The previous prime is 27378371. The next prime is 27378391. The reversal of 27378387 is 78387372.

It is not a de Polignac number, because 27378387 - 2⁴ = 27378371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27378367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2058 + ... + 7680.

Almost surely, 2^27378387 is an apocalyptic number.

27378387 is a deficient number, since it is larger than the sum of its proper divisors (12248317).

27378387 is a wasteful number, since it uses less digits than its factorization.

27378387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170 (or 6167 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 27378387 is about 5232.4360483431. The cubic root of 27378387 is about 301.3949371150.

The spelling of 27378387 in words is "twenty-seven million, three hundred seventy-eight thousand, three hundred eighty-seven".