3686958 has 40 divisors (see below), whose sum is σ = 9016920. Its totient is φ = 1116720.

The previous prime is 3686957. The next prime is 3686971. The reversal of 3686958 is 8596863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686951) 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, 748 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (225423).

Almost surely, 2^3686958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3686958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4508460).

3686958 is an abundant number, since it is smaller than the sum of its proper divisors (5329962).

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

3686958 is a wasteful number, since it uses less digits than its factorization.

3686958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094 (or 2085 counting only the distinct ones).

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

The square root of 3686958 is about 1920.1453070015. The cubic root of 3686958 is about 154.4860954590.

The spelling of 3686958 in words is "three million, six hundred eighty-six thousand, nine hundred fifty-eight".