6547966 has 4 divisors (see below), whose sum is σ = 9821952. Its totient is φ = 3273982.

The previous prime is 6547943. The next prime is 6547967. The reversal of 6547966 is 6697456.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6547967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1636990 + ... + 1636993.

It is an arithmetic number, because the mean of its divisors is an integer number (2455488).

Almost surely, 2^6547966 is an apocalyptic number.

6547966 is a deficient number, since it is larger than the sum of its proper divisors (3273986).

6547966 is a wasteful number, since it uses less digits than its factorization.

6547966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273985.

The product of its digits is 272160, while the sum is 43.

The square root of 6547966 is about 2558.8993727773. The cubic root of 6547966 is about 187.0834938428.

The spelling of 6547966 in words is "six million, five hundred forty-seven thousand, nine hundred sixty-six".