6681235 has 16 divisors (see below), whose sum is σ = 8796672. Its totient is φ = 4831200.

The previous prime is 6681209. The next prime is 6681239. The reversal of 6681235 is 5321866.

It is not a de Polignac number, because 6681235 - 2⁵ = 6681203 is a prime.

It is a super-2 number, since 2×6681235² = 89277802250450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6681197 and 6681206.

It is not an unprimeable number, because it can be changed into a prime (6681239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18022 + ... + 18388.

It is an arithmetic number, because the mean of its divisors is an integer number (549792).

Almost surely, 2^6681235 is an apocalyptic number.

6681235 is a deficient number, since it is larger than the sum of its proper divisors (2115437).

6681235 is a wasteful number, since it uses less digits than its factorization.

6681235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714.

The product of its digits is 8640, while the sum is 31.

The square root of 6681235 is about 2584.8085035453. The cubic root of 6681235 is about 188.3441993017.

The spelling of 6681235 in words is "six million, six hundred eighty-one thousand, two hundred thirty-five".