6986479 has 4 divisors (see below), whose sum is σ = 6992920. Its totient is φ = 6980040.

The previous prime is 6986453. The next prime is 6986489. The reversal of 6986479 is 9746896.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6986479 - 2⁹ = 6985967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986449) 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, 1149 + ... + 3910.

It is an arithmetic number, because the mean of its divisors is an integer number (1748230).

Almost surely, 2^6986479 is an apocalyptic number.

6986479 is a deficient number, since it is larger than the sum of its proper divisors (6441).

6986479 is a wasteful number, since it uses less digits than its factorization.

6986479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440.

The product of its digits is 653184, while the sum is 49.

The square root of 6986479 is about 2643.1948471499. The cubic root of 6986479 is about 191.1698734505.

The spelling of 6986479 in words is "six million, nine hundred eighty-six thousand, four hundred seventy-nine".