6513966 has 32 divisors (see below), whose sum is σ = 14688000. Its totient is φ = 2139480.

The previous prime is 6513953. The next prime is 6513973. The reversal of 6513966 is 6693156.

It is a self number, because there is not a number n which added to its sum of digits gives 6513966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2985 + ... + 4683.

It is an arithmetic number, because the mean of its divisors is an integer number (459000).

Almost surely, 2^6513966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6513966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7344000).

6513966 is an abundant number, since it is smaller than the sum of its proper divisors (8174034).

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

6513966 is a wasteful number, since it uses less digits than its factorization.

6513966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781 (or 1775 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 6513966 is about 2552.2472450764. The cubic root of 6513966 is about 186.7591244070.

The spelling of 6513966 in words is "six million, five hundred thirteen thousand, nine hundred sixty-six".