6546981 has 16 divisors (see below), whose sum is σ = 10119168. Its totient is φ = 3687600.

The previous prime is 6546979. The next prime is 6546997. The reversal of 6546981 is 1896456.

It is not a de Polignac number, because 6546981 - 2¹ = 6546979 is a prime.

It is a super-2 number, since 2×6546981² = 85725920428722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6546941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705 + ... + 3686.

It is an arithmetic number, because the mean of its divisors is an integer number (632448).

Almost surely, 2^6546981 is an apocalyptic number.

It is an amenable number.

6546981 is a deficient number, since it is larger than the sum of its proper divisors (3572187).

6546981 is a wasteful number, since it uses less digits than its factorization.

6546981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472.

The product of its digits is 51840, while the sum is 39.

The square root of 6546981 is about 2558.7068999790. The cubic root of 6546981 is about 187.0741124826.

The spelling of 6546981 in words is "six million, five hundred forty-six thousand, nine hundred eighty-one".