27144387 has 6 divisors (see below), whose sum is σ = 39208572. Its totient is φ = 18096252.

The previous prime is 27144367. The next prime is 27144409. The reversal of 27144387 is 78344172.

It is a happy number.

27144387 is a `hidden beast` number, since 271 + 4 + 4 + 387 = 666.

It is not a de Polignac number, because 27144387 - 2⁶ = 27144323 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (27144367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1508013 + ... + 1508030.

It is an arithmetic number, because the mean of its divisors is an integer number (6534762).

Almost surely, 2^27144387 is an apocalyptic number.

27144387 is a deficient number, since it is larger than the sum of its proper divisors (12064185).

27144387 is a wasteful number, since it uses less digits than its factorization.

27144387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016049 (or 3016046 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 27144387 is about 5210.0275431134. The cubic root of 27144387 is about 300.5338162374.

The spelling of 27144387 in words is "twenty-seven million, one hundred forty-four thousand, three hundred eighty-seven".