5638001 has 4 divisors (see below), whose sum is σ = 5819904. Its totient is φ = 5456100.

The previous prime is 5637997. The next prime is 5638019. The reversal of 5638001 is 1008365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1008365 = 5 ⋅201673.

It is a cyclic number.

It is not a de Polignac number, because 5638001 - 2² = 5637997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5638021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90905 + ... + 90966.

It is an arithmetic number, because the mean of its divisors is an integer number (1454976).

Almost surely, 2^5638001 is an apocalyptic number.

It is an amenable number.

5638001 is a deficient number, since it is larger than the sum of its proper divisors (181903).

5638001 is a wasteful number, since it uses less digits than its factorization.

5638001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181902.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 5638001 is about 2374.4475146863. The cubic root of 5638001 is about 177.9815765976.

The spelling of 5638001 in words is "five million, six hundred thirty-eight thousand, one".