3959604 has 90 divisors (see below), whose sum is σ = 11490402. Its totient is φ = 1188000.

The previous prime is 3959591. The next prime is 3959651. The reversal of 3959604 is 4069593.

It can be written as a sum of positive squares in only one way, i.e., 3920400 + 39204 = 1980^2 + 198^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 39154 + ... + 39254.

Almost surely, 2^3959604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3959604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5745201).

3959604 is an abundant number, since it is smaller than the sum of its proper divisors (7530798).

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

3959604 is a wasteful number, since it uses less digits than its factorization.

3959604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3959604 is about 1989.8753729819. The cubic root of 3959604 is about 158.2039240536.

It can be divided in two parts, 395 and 9604, that added together give a palindrome (9999).

The spelling of 3959604 in words is "three million, nine hundred fifty-nine thousand, six hundred four".