6983658 has 40 divisors (see below), whose sum is σ = 17075520. Its totient is φ = 2115720.

The previous prime is 6983657. The next prime is 6983671. The reversal of 6983658 is 8563896.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6983657) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 178 + ... + 3741.

It is an arithmetic number, because the mean of its divisors is an integer number (426888).

Almost surely, 2^6983658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6983658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8537760).

6983658 is an abundant number, since it is smaller than the sum of its proper divisors (10091862).

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

6983658 is a wasteful number, since it uses less digits than its factorization.

6983658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944 (or 3935 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6983658 is about 2642.6611587565. The cubic root of 6983658 is about 191.1441398006.

It can be divided in two parts, 698 and 3658, that added together give a square (4356 = 66²).

The spelling of 6983658 in words is "six million, nine hundred eighty-three thousand, six hundred fifty-eight".