1038994673 has 2 divisors, whose sum is σ = 1038994674. Its totient is φ = 1038994672.

The previous prime is 1038994631. The next prime is 1038994679. The reversal of 1038994673 is 3764998301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1027651249 + 11343424 = 32057^2 + 3368^2 .

It is an emirp because it is prime and its reverse (3764998301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1038994673 - 2¹⁸ = 1038732529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1038994679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519497336 + 519497337.

It is an arithmetic number, because the mean of its divisors is an integer number (519497337).

Almost surely, 2^1038994673 is an apocalyptic number.

It is an amenable number.

1038994673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038994673 is an equidigital number, since it uses as much as digits as its factorization.

1038994673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1038994673 is about 32233.4402911014. The cubic root of 1038994673 is about 1012.8328381536.

The spelling of 1038994673 in words is "one billion, thirty-eight million, nine hundred ninety-four thousand, six hundred seventy-three".