38730071 has 2 divisors, whose sum is σ = 38730072. Its totient is φ = 38730070.

The previous prime is 38730031. The next prime is 38730073. The reversal of 38730071 is 17003783.

It is a strong prime.

It is an emirp because it is prime and its reverse (17003783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38730071 is a prime.

Together with 38730073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38730073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19365035 + 19365036.

It is an arithmetic number, because the mean of its divisors is an integer number (19365036).

Almost surely, 2^38730071 is an apocalyptic number.

38730071 is a deficient number, since it is larger than the sum of its proper divisors (1).

38730071 is an equidigital number, since it uses as much as digits as its factorization.

38730071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 38730071 is about 6223.3488573275. The cubic root of 38730071 is about 338.3369508431.

The spelling of 38730071 in words is "thirty-eight million, seven hundred thirty thousand, seventy-one".