6461879 has 8 divisors (see below), whose sum is σ = 6587568. Its totient is φ = 6337600.

The previous prime is 6461869. The next prime is 6461891. The reversal of 6461879 is 9781646.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6461879 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13604 + ... + 14070.

It is an arithmetic number, because the mean of its divisors is an integer number (823446).

Almost surely, 2^6461879 is an apocalyptic number.

6461879 is a deficient number, since it is larger than the sum of its proper divisors (125689).

6461879 is a wasteful number, since it uses less digits than its factorization.

6461879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its digits is 72576, while the sum is 41.

The square root of 6461879 is about 2542.0226198836. The cubic root of 6461879 is about 186.2600036667.

The spelling of 6461879 in words is "six million, four hundred sixty-one thousand, eight hundred seventy-nine".