6979911 has 8 divisors (see below), whose sum is σ = 9854064. Its totient is φ = 4379520.

The previous prime is 6979901. The next prime is 6979913. The reversal of 6979911 is 1199796.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6979911 - 2¹⁴ = 6963527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6979913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68380 + ... + 68481.

It is an arithmetic number, because the mean of its divisors is an integer number (1231758).

Almost surely, 2^6979911 is an apocalyptic number.

6979911 is a deficient number, since it is larger than the sum of its proper divisors (2874153).

6979911 is a wasteful number, since it uses less digits than its factorization.

6979911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136881.

The product of its digits is 30618, while the sum is 42.

The square root of 6979911 is about 2641.9521191725. The cubic root of 6979911 is about 191.1099483008.

The spelling of 6979911 in words is "six million, nine hundred seventy-nine thousand, nine hundred eleven".