27140805 has 32 divisors (see below), whose sum is σ = 50353920. Its totient is φ = 13844160.

The previous prime is 27140753. The next prime is 27140819. The reversal of 27140805 is 50804172.

It is not a de Polignac number, because 27140805 - 2⁶ = 27140741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1266 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (1573560).

Almost surely, 2^27140805 is an apocalyptic number.

It is an amenable number.

27140805 is a deficient number, since it is larger than the sum of its proper divisors (23213115).

27140805 is a wasteful number, since it uses less digits than its factorization.

27140805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8778 (or 8772 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 27140805 is about 5209.6837715931. The cubic root of 27140805 is about 300.5205960765.

Adding to 27140805 its reverse (50804172), we get a palindrome (77944977).

The spelling of 27140805 in words is "twenty-seven million, one hundred forty thousand, eight hundred five".