6881634 has 48 divisors (see below), whose sum is σ = 16185312. Its totient is φ = 2104704.

The previous prime is 6881603. The next prime is 6881639. The reversal of 6881634 is 4361886.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6881639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12897 + ... + 13419.

It is an arithmetic number, because the mean of its divisors is an integer number (337194).

Almost surely, 2^6881634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6881634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8092656).

6881634 is an abundant number, since it is smaller than the sum of its proper divisors (9303678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6881634 is a wasteful number, since it uses less digits than its factorization.

6881634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 588 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6881634 is about 2623.2868695589. The cubic root of 6881634 is about 190.2087640712.

The spelling of 6881634 in words is "six million, eight hundred eighty-one thousand, six hundred thirty-four".