38438563 has 4 divisors (see below), whose sum is σ = 38530288. Its totient is φ = 38346840.

The previous prime is 38438537. The next prime is 38438567. The reversal of 38438563 is 36583483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36583483 = 179 ⋅204377.

It is a cyclic number.

It is not a de Polignac number, because 38438563 - 2⁵ = 38438531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38438567) 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, 45231 + ... + 46072.

It is an arithmetic number, because the mean of its divisors is an integer number (9632572).

Almost surely, 2^38438563 is an apocalyptic number.

38438563 is a deficient number, since it is larger than the sum of its proper divisors (91725).

38438563 is an equidigital number, since it uses as much as digits as its factorization.

38438563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91724.

The product of its digits is 207360, while the sum is 40.

The square root of 38438563 is about 6199.8841118202. The cubic root of 38438563 is about 337.4859633851.

The spelling of 38438563 in words is "thirty-eight million, four hundred thirty-eight thousand, five hundred sixty-three".