6947979 has 4 divisors (see below), whose sum is σ = 9263976. Its totient is φ = 4631984.

The previous prime is 6947959. The next prime is 6948041. The reversal of 6947979 is 9797496.

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 6947979 - 2⁵ = 6947947 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6947959) 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, 1157994 + ... + 1157999.

It is an arithmetic number, because the mean of its divisors is an integer number (2315994).

Almost surely, 2^6947979 is an apocalyptic number.

6947979 is a deficient number, since it is larger than the sum of its proper divisors (2315997).

6947979 is a wasteful number, since it uses less digits than its factorization.

6947979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315996.

The product of its digits is 857304, while the sum is 51.

The square root of 6947979 is about 2635.9019329254. The cubic root of 6947979 is about 190.8180700509.

The spelling of 6947979 in words is "six million, nine hundred forty-seven thousand, nine hundred seventy-nine".