5633681 has 8 divisors (see below), whose sum is σ = 5991264. Its totient is φ = 5279040.

The previous prime is 5633651. The next prime is 5633699. The reversal of 5633681 is 1863365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5633681 - 2²² = 1439377 is a prime.

It is a super-2 number, since 2×5633681² = 63476723219522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5633651) 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 7 ways as a sum of consecutive naturals, for example, 4226 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (748908).

Almost surely, 2^5633681 is an apocalyptic number.

It is an amenable number.

5633681 is a deficient number, since it is larger than the sum of its proper divisors (357583).

5633681 is a wasteful number, since it uses less digits than its factorization.

5633681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471.

The product of its digits is 12960, while the sum is 32.

The square root of 5633681 is about 2373.5376550626. The cubic root of 5633681 is about 177.9361067656.

The spelling of 5633681 in words is "five million, six hundred thirty-three thousand, six hundred eighty-one".