3985632 has 96 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 1137024.

The previous prime is 3985621. The next prime is 3985637. The reversal of 3985632 is 2365893.

3985632 is a `hidden beast` number, since 3 + 98 + 563 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5719 + ... + 6377.

It is an arithmetic number, because the mean of its divisors is an integer number (138600).

Almost surely, 2^3985632 is an apocalyptic number.

3985632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3985632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6652800).

3985632 is an abundant number, since it is smaller than the sum of its proper divisors (9319968).

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

3985632 is a wasteful number, since it uses less digits than its factorization.

3985632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 671 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3985632 is about 1996.4047685778. The cubic root of 3985632 is about 158.5498123514.

The spelling of 3985632 in words is "three million, nine hundred eighty-five thousand, six hundred thirty-two".