6879405 has 16 divisors (see below), whose sum is σ = 11854080. Its totient is φ = 3386688.

The previous prime is 6879371. The next prime is 6879419. The reversal of 6879405 is 5049786.

It is not a de Polignac number, because 6879405 - 2¹⁷ = 6748333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17445 + ... + 17834.

It is an arithmetic number, because the mean of its divisors is an integer number (740880).

Almost surely, 2^6879405 is an apocalyptic number.

6879405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6879405 is a deficient number, since it is larger than the sum of its proper divisors (4974675).

6879405 is a wasteful number, since it uses less digits than its factorization.

6879405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35300.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 6879405 is about 2622.8619864568. The cubic root of 6879405 is about 190.1882252903.

The spelling of 6879405 in words is "six million, eight hundred seventy-nine thousand, four hundred five".