6481879 has 4 divisors (see below), whose sum is σ = 6863184. Its totient is φ = 6100576.

The previous prime is 6481873. The next prime is 6481927. The reversal of 6481879 is 9781846.

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 6481879 - 2⁷ = 6481751 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 (6481873) 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, 190627 + ... + 190660.

It is an arithmetic number, because the mean of its divisors is an integer number (1715796).

Almost surely, 2^6481879 is an apocalyptic number.

6481879 is a deficient number, since it is larger than the sum of its proper divisors (381305).

6481879 is a wasteful number, since it uses less digits than its factorization.

6481879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381304.

The product of its digits is 96768, while the sum is 43.

The square root of 6481879 is about 2545.9534559768. The cubic root of 6481879 is about 186.4519686463.

The spelling of 6481879 in words is "six million, four hundred eighty-one thousand, eight hundred seventy-nine".