5633631 has 20 divisors (see below), whose sum is σ = 8488392. Its totient is φ = 3723408.

The previous prime is 5633623. The next prime is 5633651. The reversal of 5633631 is 1363365.

It is not a de Polignac number, because 5633631 - 2³ = 5633623 is a prime.

It is a super-2 number, since 2×5633631² = 63475596488322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 5633595 and 5633604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5633651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12496 + ... + 12938.

Almost surely, 2^5633631 is an apocalyptic number.

5633631 is a deficient number, since it is larger than the sum of its proper divisors (2854761).

5633631 is a wasteful number, since it uses less digits than its factorization.

5633631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 603 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 5633631 is about 2373.5271222381. The cubic root of 5633631 is about 177.9355803584.

Adding to 5633631 its reverse (1363365), we get a palindrome (6996996).

The spelling of 5633631 in words is "five million, six hundred thirty-three thousand, six hundred thirty-one".