1038668387 has 2 divisors, whose sum is σ = 1038668388. Its totient is φ = 1038668386.

The previous prime is 1038668381. The next prime is 1038668417. The reversal of 1038668387 is 7838668301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1038668387 - 2¹⁴ = 1038652003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1038668381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519334193 + 519334194.

It is an arithmetic number, because the mean of its divisors is an integer number (519334194).

Almost surely, 2^1038668387 is an apocalyptic number.

1038668387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038668387 is an equidigital number, since it uses as much as digits as its factorization.

1038668387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 1038668387 is about 32228.3785971308. The cubic root of 1038668387 is about 1012.7268036749.

The spelling of 1038668387 in words is "one billion, thirty-eight million, six hundred sixty-eight thousand, three hundred eighty-seven".