5638469 has 4 divisors (see below), whose sum is σ = 5654796. Its totient is φ = 5622144.

The previous prime is 5638433. The next prime is 5638489. The reversal of 5638469 is 9648365.

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 3276100 + 2362369 = 1810^2 + 1537^2 .

It is a cyclic number.

It is not a de Polignac number, because 5638469 - 2¹² = 5634373 is a prime.

It is a super-2 number, since 2×5638469² = 63584665327922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638429) 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, 7634 + ... + 8339.

It is an arithmetic number, because the mean of its divisors is an integer number (1413699).

Almost surely, 2^5638469 is an apocalyptic number.

It is an amenable number.

5638469 is a deficient number, since it is larger than the sum of its proper divisors (16327).

5638469 is a wasteful number, since it uses less digits than its factorization.

5638469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16326.

The product of its digits is 155520, while the sum is 41.

The square root of 5638469 is about 2374.5460618821. The cubic root of 5638469 is about 177.9865011015.

The spelling of 5638469 in words is "five million, six hundred thirty-eight thousand, four hundred sixty-nine".