6881379 has 12 divisors (see below), whose sum is σ = 9747864. Its totient is φ = 4317184.

The previous prime is 6881359. The next prime is 6881383. The reversal of 6881379 is 9731886.

It is not a de Polignac number, because 6881379 - 2⁸ = 6881123 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6881379.

It is not an unprimeable number, because it can be changed into a prime (6881339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3102 + ... + 4835.

It is an arithmetic number, because the mean of its divisors is an integer number (812322).

Almost surely, 2^6881379 is an apocalyptic number.

6881379 is a deficient number, since it is larger than the sum of its proper divisors (2866485).

6881379 is a wasteful number, since it uses less digits than its factorization.

6881379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974 (or 7957 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 6881379 is about 2623.2382659606. The cubic root of 6881379 is about 190.2064146372.

It can be divided in two parts, 6881 and 379, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 6881379 in words is "six million, eight hundred eighty-one thousand, three hundred seventy-nine".