38380889 has 2 divisors, whose sum is σ = 38380890. Its totient is φ = 38380888.

The previous prime is 38380871. The next prime is 38380987. The reversal of 38380889 is 98808383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20403289 + 17977600 = 4517^2 + 4240^2 .

It is an emirp because it is prime and its reverse (98808383) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38380889 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38380829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19190444 + 19190445.

It is an arithmetic number, because the mean of its divisors is an integer number (19190445).

Almost surely, 2^38380889 is an apocalyptic number.

It is an amenable number.

38380889 is a deficient number, since it is larger than the sum of its proper divisors (1).

38380889 is an equidigital number, since it uses as much as digits as its factorization.

38380889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 38380889 is about 6195.2311498442. The cubic root of 38380889 is about 337.3170886331.

The spelling of 38380889 in words is "thirty-eight million, three hundred eighty thousand, eight hundred eighty-nine".