6909679 has 4 divisors (see below), whose sum is σ = 7896784. Its totient is φ = 5922576.

The previous prime is 6909677. The next prime is 6909709. The reversal of 6909679 is 9769096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6909679 - 2¹ = 6909677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6909677) 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, 493542 + ... + 493555.

It is an arithmetic number, because the mean of its divisors is an integer number (1974196).

Almost surely, 2^6909679 is an apocalyptic number.

6909679 is a deficient number, since it is larger than the sum of its proper divisors (987105).

6909679 is an equidigital number, since it uses as much as digits as its factorization.

6909679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987104.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 6909679 is about 2628.6268278324. The cubic root of 6909679 is about 190.4668023339.

The spelling of 6909679 in words is "six million, nine hundred nine thousand, six hundred seventy-nine".