38858839 has 2 divisors, whose sum is σ = 38858840. Its totient is φ = 38858838.

The previous prime is 38858803. The next prime is 38858851. The reversal of 38858839 is 93885883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38858839 - 2²¹ = 36761687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38858899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19429419 + 19429420.

It is an arithmetic number, because the mean of its divisors is an integer number (19429420).

Almost surely, 2^38858839 is an apocalyptic number.

38858839 is a deficient number, since it is larger than the sum of its proper divisors (1).

38858839 is an equidigital number, since it uses as much as digits as its factorization.

38858839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 52.

The square root of 38858839 is about 6233.6858278229. The cubic root of 38858839 is about 338.7114985540.

The spelling of 38858839 in words is "thirty-eight million, eight hundred fifty-eight thousand, eight hundred thirty-nine".