5636993 has 4 divisors (see below), whose sum is σ = 5700420. Its totient is φ = 5573568.

The previous prime is 5636989. The next prime is 5637007. The reversal of 5636993 is 3996365.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1281424 + 4355569 = 1132^2 + 2087^2 .

It is a cyclic number.

It is not a de Polignac number, because 5636993 - 2² = 5636989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5636993.

It is not an unprimeable number, because it can be changed into a prime (5636923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31580 + ... + 31757.

It is an arithmetic number, because the mean of its divisors is an integer number (1425105).

Almost surely, 2^5636993 is an apocalyptic number.

It is an amenable number.

5636993 is a deficient number, since it is larger than the sum of its proper divisors (63427).

5636993 is an equidigital number, since it uses as much as digits as its factorization.

5636993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63426.

The product of its digits is 131220, while the sum is 41.

The square root of 5636993 is about 2374.2352452948. The cubic root of 5636993 is about 177.9709690482.

The spelling of 5636993 in words is "five million, six hundred thirty-six thousand, nine hundred ninety-three".