538173887 has 2 divisors, whose sum is σ = 538173888. Its totient is φ = 538173886.

The previous prime is 538173817. The next prime is 538173899. The reversal of 538173887 is 788371835.

538173887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538173887 - 2⁸ = 538173631 is a prime.

It is a super-2 number, since 2×538173887² = 579262265297377538, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538173817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269086943 + 269086944.

It is an arithmetic number, because the mean of its divisors is an integer number (269086944).

Almost surely, 2^538173887 is an apocalyptic number.

538173887 is a deficient number, since it is larger than the sum of its proper divisors (1).

538173887 is an equidigital number, since it uses as much as digits as its factorization.

538173887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 50.

The square root of 538173887 is about 23198.5751071052. The cubic root of 538173887 is about 813.4063162173.

The spelling of 538173887 in words is "five hundred thirty-eight million, one hundred seventy-three thousand, eight hundred eighty-seven".