3631788 has 36 divisors (see below), whose sum is σ = 9303840. Its totient is φ = 1194336.

The previous prime is 3631787. The next prime is 3631799. The reversal of 3631788 is 8871363.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3631781) 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 11 ways as a sum of consecutive naturals, for example, 2206 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (258440).

Almost surely, 2^3631788 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 3631788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4651920).

3631788 is an abundant number, since it is smaller than the sum of its proper divisors (5672052).

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

3631788 is a wasteful number, since it uses less digits than its factorization.

3631788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1361 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3631788 is about 1905.7250588687. The cubic root of 3631788 is about 153.7116660330.

The spelling of 3631788 in words is "three million, six hundred thirty-one thousand, seven hundred eighty-eight".