38683739 has 2 divisors, whose sum is σ = 38683740. Its totient is φ = 38683738.

The previous prime is 38683717. The next prime is 38683741. The reversal of 38683739 is 93738683.

It is a strong prime.

It is an emirp because it is prime and its reverse (93738683) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38683739 is a prime.

Together with 38683741, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38683693 and 38683702.

It is not a weakly prime, because it can be changed into another prime (38683439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19341869 + 19341870.

It is an arithmetic number, because the mean of its divisors is an integer number (19341870).

Almost surely, 2^38683739 is an apocalyptic number.

38683739 is a deficient number, since it is larger than the sum of its proper divisors (1).

38683739 is an equidigital number, since it uses as much as digits as its factorization.

38683739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 38683739 is about 6219.6253102578. The cubic root of 38683739 is about 338.2019817932.

The spelling of 38683739 in words is "thirty-eight million, six hundred eighty-three thousand, seven hundred thirty-nine".