38910005 has 8 divisors (see below), whose sum is σ = 49149600. Its totient is φ = 29489616.

The previous prime is 38909989. The next prime is 38910017. The reversal of 38910005 is 50001983.

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 38910005 - 2⁴ = 38909989 is a prime.

It is a congruent 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, 204695 + ... + 204884.

It is an arithmetic number, because the mean of its divisors is an integer number (6143700).

Almost surely, 2^38910005 is an apocalyptic number.

It is an amenable number.

38910005 is a deficient number, since it is larger than the sum of its proper divisors (10239595).

38910005 is a wasteful number, since it uses less digits than its factorization.

38910005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409603.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 38910005 is about 6237.7884702834. The cubic root of 38910005 is about 338.8600954764.

Adding to 38910005 its reverse (50001983), we get a palindrome (88911988).

The spelling of 38910005 in words is "thirty-eight million, nine hundred ten thousand, five".