6317979 has 4 divisors (see below), whose sum is σ = 8423976. Its totient is φ = 4211984.

The previous prime is 6317963. The next prime is 6318001. The reversal of 6317979 is 9797136.

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 6317979 - 2⁴ = 6317963 is a prime.

It is a D-number.

6317979 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6317979.

It is not an unprimeable number, because it can be changed into a prime (6317929) 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, 1052994 + ... + 1052999.

It is an arithmetic number, because the mean of its divisors is an integer number (2105994).

Almost surely, 2^6317979 is an apocalyptic number.

6317979 is a deficient number, since it is larger than the sum of its proper divisors (2105997).

6317979 is a wasteful number, since it uses less digits than its factorization.

6317979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105996.

The product of its digits is 71442, while the sum is 42.

The square root of 6317979 is about 2513.5590305382. The cubic root of 6317979 is about 184.8669996094.

The spelling of 6317979 in words is "six million, three hundred seventeen thousand, nine hundred seventy-nine".