1038694427 has 2 divisors, whose sum is σ = 1038694428. Its totient is φ = 1038694426.

The previous prime is 1038694417. The next prime is 1038694487. The reversal of 1038694427 is 7244968301.

It is a weak prime.

It is an emirp because it is prime and its reverse (7244968301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1038694427 - 2⁸ = 1038694171 is a prime.

It is a super-2 number, since 2×1038694427² = 2157772225361716658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1038694417) 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, 519347213 + 519347214.

It is an arithmetic number, because the mean of its divisors is an integer number (519347214).

Almost surely, 2^1038694427 is an apocalyptic number.

1038694427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038694427 is an equidigital number, since it uses as much as digits as its factorization.

1038694427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 1038694427 is about 32228.7825863777. The cubic root of 1038694427 is about 1012.7352668142.

The spelling of 1038694427 in words is "one billion, thirty-eight million, six hundred ninety-four thousand, four hundred twenty-seven".