1038378773 has 2 divisors, whose sum is σ = 1038378774. Its totient is φ = 1038378772.

The previous prime is 1038378667. The next prime is 1038378877. The reversal of 1038378773 is 3778738301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 787251364 + 251127409 = 28058^2 + 15847^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038378773 - 2¹⁴ = 1038362389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038378373) 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, 519189386 + 519189387.

It is an arithmetic number, because the mean of its divisors is an integer number (519189387).

Almost surely, 2^1038378773 is an apocalyptic number.

It is an amenable number.

1038378773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038378773 is an equidigital number, since it uses as much as digits as its factorization.

1038378773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 1038378773 is about 32223.8851319949. The cubic root of 1038378773 is about 1012.6326680397.

The spelling of 1038378773 in words is "one billion, thirty-eight million, three hundred seventy-eight thousand, seven hundred seventy-three".