38448791 has 2 divisors, whose sum is σ = 38448792. Its totient is φ = 38448790.

The previous prime is 38448779. The next prime is 38448793. The reversal of 38448791 is 19784483.

It is a strong prime.

It is an emirp because it is prime and its reverse (19784483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38448791 - 2¹⁰ = 38447767 is a prime.

Together with 38448793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38448793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19224395 + 19224396.

It is an arithmetic number, because the mean of its divisors is an integer number (19224396).

Almost surely, 2^38448791 is an apocalyptic number.

38448791 is a deficient number, since it is larger than the sum of its proper divisors (1).

38448791 is an equidigital number, since it uses as much as digits as its factorization.

38448791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 38448791 is about 6200.7089110843. The cubic root of 38448791 is about 337.5158942675.

The spelling of 38448791 in words is "thirty-eight million, four hundred forty-eight thousand, seven hundred ninety-one".