3941658 has 72 divisors (see below), whose sum is σ = 10270260. Its totient is φ = 1088640.

The previous prime is 3941653. The next prime is 3941669. The reversal of 3941658 is 8561493.

It can be written as a sum of positive squares in 2 ways, for example, as 3814209 + 127449 = 1953^2 + 357^2 .

It is an Ulam number.

Its product of digits (25920) is a multiple of the sum of its prime divisors (162).

It is not an unprimeable number, because it can be changed into a prime (3941653) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36108 + ... + 36216.

Almost surely, 2^3941658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3941658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5135130).

3941658 is an abundant number, since it is smaller than the sum of its proper divisors (6328602).

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

3941658 is a wasteful number, since it uses less digits than its factorization.

3941658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 162 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3941658 is about 1985.3609243661. The cubic root of 3941658 is about 157.9645543518.

The spelling of 3941658 in words is "three million, nine hundred forty-one thousand, six hundred fifty-eight".