38891105 has 8 divisors (see below), whose sum is σ = 50912064. Its totient is φ = 28284400.

The previous prime is 38891101. The next prime is 38891113. The reversal of 38891105 is 50119883.

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

It is not a de Polignac number, because 38891105 - 2² = 38891101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38891101) 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, 353501 + ... + 353610.

It is an arithmetic number, because the mean of its divisors is an integer number (6364008).

Almost surely, 2^38891105 is an apocalyptic number.

It is an amenable number.

38891105 is a deficient number, since it is larger than the sum of its proper divisors (12020959).

38891105 is a wasteful number, since it uses less digits than its factorization.

38891105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707127.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 38891105 is about 6236.2733262743. The cubic root of 38891105 is about 338.8052210463.

It can be divided in two parts, 3889 and 1105, that added together give a palindrome (4994).

The spelling of 38891105 in words is "thirty-eight million, eight hundred ninety-one thousand, one hundred five".