5603638 has 4 divisors (see below), whose sum is σ = 8405460. Its totient is φ = 2801818.

The previous prime is 5603629. The next prime is 5603657. The reversal of 5603638 is 8363065.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400908 + ... + 1400911.

It is an arithmetic number, because the mean of its divisors is an integer number (2101365).

Almost surely, 2^5603638 is an apocalyptic number.

5603638 is a deficient number, since it is larger than the sum of its proper divisors (2801822).

5603638 is a wasteful number, since it uses less digits than its factorization.

5603638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801821.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 5603638 is about 2367.2004562352. The cubic root of 5603638 is about 177.6192467238.

It can be divided in two parts, 5603 and 638, that added together give a square (6241 = 79²).

The spelling of 5603638 in words is "five million, six hundred three thousand, six hundred thirty-eight".