3631608 has 128 divisors (see below), whose sum is σ = 11404800. Its totient is φ = 1064448.

The previous prime is 3631597. The next prime is 3631609. The reversal of 3631608 is 8061363.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3631609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84435 + ... + 84477.

It is an arithmetic number, because the mean of its divisors is an integer number (89100).

Almost surely, 2^3631608 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 3631608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5702400).

3631608 is an abundant number, since it is smaller than the sum of its proper divisors (7773192).

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

3631608 is a wasteful number, since it uses less digits than its factorization.

3631608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3631608 is about 1905.6778321637. The cubic root of 3631608 is about 153.7091265532.

The spelling of 3631608 in words is "three million, six hundred thirty-one thousand, six hundred eight".