38889001 has 2 divisors, whose sum is σ = 38889002. Its totient is φ = 38889000.

The previous prime is 38888999. The next prime is 38889007. The reversal of 38889001 is 10098883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25755625 + 13133376 = 5075^2 + 3624^2 .

It is an emirp because it is prime and its reverse (10098883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38889001 - 2¹ = 38888999 is a prime.

Together with 38888999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38889007) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19444500 + 19444501.

It is an arithmetic number, because the mean of its divisors is an integer number (19444501).

Almost surely, 2^38889001 is an apocalyptic number.

It is an amenable number.

38889001 is a deficient number, since it is larger than the sum of its proper divisors (1).

38889001 is an equidigital number, since it uses as much as digits as its factorization.

38889001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 38889001 is about 6236.1046335032. The cubic root of 38889001 is about 338.7991111741.

The spelling of 38889001 in words is "thirty-eight million, eight hundred eighty-nine thousand, one".