6540027 has 24 divisors (see below), whose sum is σ = 9847824. Its totient is φ = 3837504.

The previous prime is 6540013. The next prime is 6540029. The reversal of 6540027 is 7200456.

It is a happy number.

It is not a de Polignac number, because 6540027 - 2⁶ = 6539963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6539979 and 6540006.

It is not an unprimeable number, because it can be changed into a prime (6540029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20473 + ... + 20789.

It is an arithmetic number, because the mean of its divisors is an integer number (410326).

Almost surely, 2^6540027 is an apocalyptic number.

6540027 is a deficient number, since it is larger than the sum of its proper divisors (3307797).

6540027 is a wasteful number, since it uses less digits than its factorization.

6540027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 6540027 is about 2557.3476494212. The cubic root of 6540027 is about 187.0078542461.

The spelling of 6540027 in words is "six million, five hundred forty thousand, twenty-seven".