6809642 has 32 divisors (see below), whose sum is σ = 12165120. Its totient is φ = 2798640.

The previous prime is 6809641. The next prime is 6809653. The reversal of 6809642 is 2469086.

6809642 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

6809642 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (6809641) 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, 51917 + ... + 52047.

It is an arithmetic number, because the mean of its divisors is an integer number (380160).

Almost surely, 2^6809642 is an apocalyptic number.

6809642 is a deficient number, since it is larger than the sum of its proper divisors (5355478).

6809642 is a wasteful number, since it uses less digits than its factorization.

6809642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

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

The square root of 6809642 is about 2609.5290762894. The cubic root of 6809642 is about 189.5431498567.

The spelling of 6809642 in words is "six million, eight hundred nine thousand, six hundred forty-two".