38639995 has 8 divisors (see below), whose sum is σ = 47003616. Its totient is φ = 30488256.

The previous prime is 38639987. The next prime is 38640001. The reversal of 38639995 is 59993683.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38639995 - 2³ = 38639987 is a prime.

It is a Duffinian 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, 52567 + ... + 53296.

It is an arithmetic number, because the mean of its divisors is an integer number (5875452).

Almost surely, 2^38639995 is an apocalyptic number.

38639995 is a deficient number, since it is larger than the sum of its proper divisors (8363621).

38639995 is a wasteful number, since it uses less digits than its factorization.

38639995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105941.

The product of its digits is 1574640, while the sum is 52.

The square root of 38639995 is about 6216.1077049871. The cubic root of 38639995 is about 338.0744528633.

The spelling of 38639995 in words is "thirty-eight million, six hundred thirty-nine thousand, nine hundred ninety-five".