38346839 has 2 divisors, whose sum is σ = 38346840. Its totient is φ = 38346838.

The previous prime is 38346829. The next prime is 38346851. The reversal of 38346839 is 93864383.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38346839 - 2⁴ = 38346823 is a prime.

It is a super-2 number, since 2×38346839² = 2940960122583842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38346839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38346809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19173419 + 19173420.

It is an arithmetic number, because the mean of its divisors is an integer number (19173420).

Almost surely, 2^38346839 is an apocalyptic number.

38346839 is a deficient number, since it is larger than the sum of its proper divisors (1).

38346839 is an equidigital number, since it uses as much as digits as its factorization.

38346839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 44.

The square root of 38346839 is about 6192.4824585945. The cubic root of 38346839 is about 337.2173076798.

The spelling of 38346839 in words is "thirty-eight million, three hundred forty-six thousand, eight hundred thirty-nine".