39938563 has 8 divisors (see below), whose sum is σ = 45710432. Its totient is φ = 34183296.

The previous prime is 39938543. The next prime is 39938567. The reversal of 39938563 is 36583993.

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

It is not a de Polignac number, because 39938563 - 2¹⁷ = 39807491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39938567) 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, 1531 + ... + 9067.

It is an arithmetic number, because the mean of its divisors is an integer number (5713804).

Almost surely, 2^39938563 is an apocalyptic number.

39938563 is a deficient number, since it is larger than the sum of its proper divisors (5771869).

39938563 is an equidigital number, since it uses as much as digits as its factorization.

39938563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301.

The product of its digits is 524880, while the sum is 46.

The square root of 39938563 is about 6319.6964325828. The cubic root of 39938563 is about 341.8200066285.

The spelling of 39938563 in words is "thirty-nine million, nine hundred thirty-eight thousand, five hundred sixty-three".