6979966 has 16 divisors (see below), whose sum is σ = 12119040. Its totient is φ = 2953080.

The previous prime is 6979961. The next prime is 6979967. The reversal of 6979966 is 6699796.

It is a super-2 number, since 2×6979966² = 97439850722312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6979961) 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, 2050 + ... + 4261.

It is an arithmetic number, because the mean of its divisors is an integer number (757440).

Almost surely, 2^6979966 is an apocalyptic number.

6979966 is a deficient number, since it is larger than the sum of its proper divisors (5139074).

6979966 is a wasteful number, since it uses less digits than its factorization.

6979966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399.

The product of its digits is 1102248, while the sum is 52.

The square root of 6979966 is about 2641.9625281219. The cubic root of 6979966 is about 191.1104502661.

The spelling of 6979966 in words is "six million, nine hundred seventy-nine thousand, nine hundred sixty-six".