5638635 has 12 divisors (see below), whose sum is σ = 9773712. Its totient is φ = 3007248.

The previous prime is 5638631. The next prime is 5638639. The reversal of 5638635 is 5368365.

It is an interprime number because it is at equal distance from previous prime (5638631) and next prime (5638639).

It is not a de Polignac number, because 5638635 - 2² = 5638631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5638635.

It is not an unprimeable number, because it can be changed into a prime (5638631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62607 + ... + 62696.

It is an arithmetic number, because the mean of its divisors is an integer number (814476).

Almost surely, 2^5638635 is an apocalyptic number.

5638635 is a deficient number, since it is larger than the sum of its proper divisors (4135077).

5638635 is a wasteful number, since it uses less digits than its factorization.

5638635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125314 (or 125311 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 5638635 is about 2374.5810156741. The cubic root of 5638635 is about 177.9882477617.

The spelling of 5638635 in words is "five million, six hundred thirty-eight thousand, six hundred thirty-five".