38739871 has 2 divisors, whose sum is σ = 38739872. Its totient is φ = 38739870.

The previous prime is 38739847. The next prime is 38739881. The reversal of 38739871 is 17893783.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38739871 - 2⁵ = 38739839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38739881) 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 as a sum of consecutive naturals, namely, 19369935 + 19369936.

It is an arithmetic number, because the mean of its divisors is an integer number (19369936).

Almost surely, 2^38739871 is an apocalyptic number.

38739871 is a deficient number, since it is larger than the sum of its proper divisors (1).

38739871 is an equidigital number, since it uses as much as digits as its factorization.

38739871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 46.

The square root of 38739871 is about 6224.1361649630. The cubic root of 38739871 is about 338.3654852817.

The spelling of 38739871 in words is "thirty-eight million, seven hundred thirty-nine thousand, eight hundred seventy-one".