1038390811 has 2 divisors, whose sum is σ = 1038390812. Its totient is φ = 1038390810.

The previous prime is 1038390781. The next prime is 1038390823. The reversal of 1038390811 is 1180938301.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1038390811 - 2²³ = 1030002203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1038390851) 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, 519195405 + 519195406.

It is an arithmetic number, because the mean of its divisors is an integer number (519195406).

Almost surely, 2^1038390811 is an apocalyptic number.

1038390811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038390811 is an equidigital number, since it uses as much as digits as its factorization.

1038390811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1038390811 is about 32224.0719183656. The cubic root of 1038390811 is about 1012.6365811991.

The spelling of 1038390811 in words is "one billion, thirty-eight million, three hundred ninety thousand, eight hundred eleven".