3604986 has 120 divisors (see below), whose sum is σ = 10698336. Its totient is φ = 881280.

The previous prime is 3604981. The next prime is 3604999. The reversal of 3604986 is 6894063.

It is a self number, because there is not a number n which added to its sum of digits gives 3604986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3604981) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 212050 + ... + 212066.

Almost surely, 2^3604986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3604986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5349168).

3604986 is an abundant number, since it is smaller than the sum of its proper divisors (7093350).

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

3604986 is a wasteful number, since it uses less digits than its factorization.

3604986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3604986 is about 1898.6800678366. The cubic root of 3604986 is about 153.3326097424.

The spelling of 3604986 in words is "three million, six hundred four thousand, nine hundred eighty-six".