38651 has 2 divisors, whose sum is σ = 38652. Its totient is φ = 38650.

The previous prime is 38639. The next prime is 38653. The reversal of 38651 is 15683.

It is a strong prime.

It is an emirp because it is prime and its reverse (15683) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38651 is a prime.

Together with 38653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19325 + 19326.

It is an arithmetic number, because the mean of its divisors is an integer number (19326).

2³⁸⁶⁵¹ is an apocalyptic number.

38651 is a deficient number, since it is larger than the sum of its proper divisors (1).

38651 is an equidigital number, since it uses as much as digits as its factorization.

38651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 38651 is about 196.5985757832. The cubic root of 38651 is about 33.8106545312.

The spelling of 38651 in words is "thirty-eight thousand, six hundred fifty-one".