3629638 has 4 divisors (see below), whose sum is σ = 5444460. Its totient is φ = 1814818.

The previous prime is 3629629. The next prime is 3629657. The reversal of 3629638 is 8369263.

It is a happy number.

3629638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×3629638² = 26348544022088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3629597 and 3629606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907408 + ... + 907411.

It is an arithmetic number, because the mean of its divisors is an integer number (1361115).

Almost surely, 2^3629638 is an apocalyptic number.

3629638 is a deficient number, since it is larger than the sum of its proper divisors (1814822).

3629638 is a wasteful number, since it uses less digits than its factorization.

3629638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814821.

The product of its digits is 46656, while the sum is 37.

The square root of 3629638 is about 1905.1608855947. The cubic root of 3629638 is about 153.6813278711.

It can be divided in two parts, 362 and 9638, that added together give a 4-th power (10000 = 10⁴).

The spelling of 3629638 in words is "three million, six hundred twenty-nine thousand, six hundred thirty-eight".