1038556423 has 2 divisors, whose sum is σ = 1038556424. Its totient is φ = 1038556422.

The previous prime is 1038556391. The next prime is 1038556433. The reversal of 1038556423 is 3246558301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1038556423 - 2⁵ = 1038556391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038556433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519278211 + 519278212.

It is an arithmetic number, because the mean of its divisors is an integer number (519278212).

Almost surely, 2^1038556423 is an apocalyptic number.

1038556423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038556423 is an equidigital number, since it uses as much as digits as its factorization.

1038556423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1038556423 is about 32226.6415097819. The cubic root of 1038556423 is about 1012.6904131645.

The spelling of 1038556423 in words is "one billion, thirty-eight million, five hundred fifty-six thousand, four hundred twenty-three".