5638386 has 16 divisors (see below), whose sum is σ = 12144384. Its totient is φ = 1734864.

The previous prime is 5638379. The next prime is 5638397. The reversal of 5638386 is 6838365.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36066 + ... + 36221.

It is an arithmetic number, because the mean of its divisors is an integer number (759024).

Almost surely, 2^5638386 is an apocalyptic number.

5638386 is an abundant number, since it is smaller than the sum of its proper divisors (6505998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5638386 is a wasteful number, since it uses less digits than its factorization.

5638386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72305.

The product of its digits is 103680, while the sum is 39.

The square root of 5638386 is about 2374.5285847932. The cubic root of 5638386 is about 177.9856277585.

The spelling of 5638386 in words is "five million, six hundred thirty-eight thousand, three hundred eighty-six".