38136647 has 2 divisors, whose sum is σ = 38136648. Its totient is φ = 38136646.

The previous prime is 38136643. The next prime is 38136649. The reversal of 38136647 is 74663183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38136647 - 2² = 38136643 is a prime.

Together with 38136649, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38136647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38136643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19068323 + 19068324.

It is an arithmetic number, because the mean of its divisors is an integer number (19068324).

Almost surely, 2^38136647 is an apocalyptic number.

38136647 is a deficient number, since it is larger than the sum of its proper divisors (1).

38136647 is an equidigital number, since it uses as much as digits as its factorization.

38136647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 38136647 is about 6175.4875920853. The cubic root of 38136647 is about 336.6000444368.

It can be divided in two parts, 38136 and 647, that added together give a palindrome (38783).

The spelling of 38136647 in words is "thirty-eight million, one hundred thirty-six thousand, six hundred forty-seven".