38791117 has 4 divisors (see below), whose sum is σ = 39693280. Its totient is φ = 37888956.

The previous prime is 38791111. The next prime is 38791157. The reversal of 38791117 is 71119783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38791117 - 2¹⁹ = 38266829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38791111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451017 + ... + 451102.

It is an arithmetic number, because the mean of its divisors is an integer number (9923320).

Almost surely, 2^38791117 is an apocalyptic number.

It is an amenable number.

38791117 is a deficient number, since it is larger than the sum of its proper divisors (902163).

38791117 is an equidigital number, since it uses as much as digits as its factorization.

38791117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902162.

The product of its digits is 10584, while the sum is 37.

The square root of 38791117 is about 6228.2515202904. The cubic root of 38791117 is about 338.5146187796.

The spelling of 38791117 in words is "thirty-eight million, seven hundred ninety-one thousand, one hundred seventeen".