6868609 has 4 divisors (see below), whose sum is σ = 7493040. Its totient is φ = 6244180.

The previous prime is 6868597. The next prime is 6868613. The reversal of 6868609 is 9068686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6868609 - 2¹⁹ = 6344321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6868649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312199 + ... + 312220.

It is an arithmetic number, because the mean of its divisors is an integer number (1873260).

Almost surely, 2^6868609 is an apocalyptic number.

It is an amenable number.

6868609 is a deficient number, since it is larger than the sum of its proper divisors (624431).

6868609 is a wasteful number, since it uses less digits than its factorization.

6868609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624430.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 6868609 is about 2620.8031211825. The cubic root of 6868609 is about 190.0886843610.

The spelling of 6868609 in words is "six million, eight hundred sixty-eight thousand, six hundred nine".