38320817 has 2 divisors, whose sum is σ = 38320818. Its totient is φ = 38320816.

The previous prime is 38320801. The next prime is 38320823. The reversal of 38320817 is 71802383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38241856 + 78961 = 6184^2 + 281^2 .

It is an emirp because it is prime and its reverse (71802383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38320817 - 2⁴ = 38320801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38320847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19160408 + 19160409.

It is an arithmetic number, because the mean of its divisors is an integer number (19160409).

Almost surely, 2^38320817 is an apocalyptic number.

It is an amenable number.

38320817 is a deficient number, since it is larger than the sum of its proper divisors (1).

38320817 is an equidigital number, since it uses as much as digits as its factorization.

38320817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 38320817 is about 6190.3810060448. The cubic root of 38320817 is about 337.1410123478.

The spelling of 38320817 in words is "thirty-eight million, three hundred twenty thousand, eight hundred seventeen".