6540966 has 32 divisors (see below), whose sum is σ = 14709600. Its totient is φ = 2154240.

The previous prime is 6540953. The next prime is 6540967. The reversal of 6540966 is 6690456.

It is a happy number.

It is a d-powerful number, because it can be written as 6² + 5⁷ + 4 + 0 + 9⁷ + 6³ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 6540966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4126 + ... + 5486.

It is an arithmetic number, because the mean of its divisors is an integer number (459675).

Almost surely, 2^6540966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6540966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7354800).

6540966 is an abundant number, since it is smaller than the sum of its proper divisors (8168634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6540966 is a wasteful number, since it uses less digits than its factorization.

6540966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6540966 is about 2557.5312314809. The cubic root of 6540966 is about 187.0168038509.

The spelling of 6540966 in words is "six million, five hundred forty thousand, nine hundred sixty-six".