6640982 has 16 divisors (see below), whose sum is σ = 10834560. Its totient is φ = 3040128.

The previous prime is 6640979. The next prime is 6640987. The reversal of 6640982 is 2890466.

6640982 is nontrivially palindromic in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6640987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382 + ... + 3897.

It is an arithmetic number, because the mean of its divisors is an integer number (677160).

Almost surely, 2^6640982 is an apocalyptic number.

6640982 is a deficient number, since it is larger than the sum of its proper divisors (4193578).

6640982 is a wasteful number, since it uses less digits than its factorization.

6640982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 6640982 is about 2577.0102832546. The cubic root of 6640982 is about 187.9651927412.

The spelling of 6640982 in words is "six million, six hundred forty thousand, nine hundred eighty-two".