39388005 has 32 divisors (see below), whose sum is σ = 71185920. Its totient is φ = 20658240.

The previous prime is 39387991. The next prime is 39388009. The reversal of 39388005 is 50088393.

39388005 is nontrivially palindromic in base 7.

It is not a de Polignac number, because 39388005 - 2⁴ = 39387989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39388009) 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 31 ways as a sum of consecutive naturals, for example, 5844 + ... + 10626.

It is an arithmetic number, because the mean of its divisors is an integer number (2224560).

Almost surely, 2^39388005 is an apocalyptic number.

It is an amenable number.

39388005 is a deficient number, since it is larger than the sum of its proper divisors (31797915).

39388005 is a wasteful number, since it uses less digits than its factorization.

39388005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858 (or 4852 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 39388005 is about 6275.9863766583. The cubic root of 39388005 is about 340.2420565819.

The spelling of 39388005 in words is "thirty-nine million, three hundred eighty-eight thousand, five".