38384257 has 2 divisors, whose sum is σ = 38384258. Its totient is φ = 38384256.

The previous prime is 38384239. The next prime is 38384261. The reversal of 38384257 is 75248383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33362176 + 5022081 = 5776^2 + 2241^2 .

It is a cyclic number.

It is not a de Polignac number, because 38384257 - 2²³ = 29995649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38384267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19192128 + 19192129.

It is an arithmetic number, because the mean of its divisors is an integer number (19192129).

Almost surely, 2^38384257 is an apocalyptic number.

It is an amenable number.

38384257 is a deficient number, since it is larger than the sum of its proper divisors (1).

38384257 is an equidigital number, since it uses as much as digits as its factorization.

38384257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 38384257 is about 6195.5029658616. The cubic root of 38384257 is about 337.3269550949.

The spelling of 38384257 in words is "thirty-eight million, three hundred eighty-four thousand, two hundred fifty-seven".