6466979 has 8 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 6162376.

The previous prime is 6466969. The next prime is 6466991. The reversal of 6466979 is 9796646.

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

It is a cyclic number.

It is not a de Polignac number, because 6466979 - 2⁸ = 6466723 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 4⁵ + 6⁴ + 6⁸ + 9³ + 7² + 9⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6466969) 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, 10724 + ... + 11310.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^6466979 is an apocalyptic number.

6466979 is a deficient number, since it is larger than the sum of its proper divisors (306781).

6466979 is a wasteful number, since it uses less digits than its factorization.

6466979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089.

The product of its digits is 489888, while the sum is 47.

The square root of 6466979 is about 2543.0255602333. The cubic root of 6466979 is about 186.3089923185.

The spelling of 6466979 in words is "six million, four hundred sixty-six thousand, nine hundred seventy-nine".