5638345 has 8 divisors (see below), whose sum is σ = 7122240. Its totient is φ = 4273200.

The previous prime is 5638327. The next prime is 5638349. The reversal of 5638345 is 5438365.

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

It is not a de Polignac number, because 5638345 - 2⁵ = 5638313 is a prime.

It is an alternating number because its digits alternate between odd and even.

5638345 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5638345.

It is not an unprimeable number, because it can be changed into a prime (5638349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29581 + ... + 29770.

It is an arithmetic number, because the mean of its divisors is an integer number (890280).

Almost surely, 2^5638345 is an apocalyptic number.

It is an amenable number.

5638345 is a deficient number, since it is larger than the sum of its proper divisors (1483895).

5638345 is a wasteful number, since it uses less digits than its factorization.

5638345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59375.

The product of its digits is 43200, while the sum is 34.

The square root of 5638345 is about 2374.5199514849. The cubic root of 5638345 is about 177.9851963449.

The spelling of 5638345 in words is "five million, six hundred thirty-eight thousand, three hundred forty-five".