3869658 has 48 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 1137312.

The previous prime is 3869653. The next prime is 3869683. The reversal of 3869658 is 8569683.

It is not an unprimeable number, because it can be changed into a prime (3869653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5023 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^3869658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3869658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4717440).

3869658 is an abundant number, since it is smaller than the sum of its proper divisors (5565222).

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

3869658 is a wasteful number, since it uses less digits than its factorization.

3869658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 760 counting only the distinct ones).

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

The square root of 3869658 is about 1967.1446311850. The cubic root of 3869658 is about 156.9968219839.

It can be divided in two parts, 38 and 69658, that added together give a palindrome (69696).

The spelling of 3869658 in words is "three million, eight hundred sixty-nine thousand, six hundred fifty-eight".