538858687 has 2 divisors, whose sum is σ = 538858688. Its totient is φ = 538858686.

The previous prime is 538858679. The next prime is 538858699. The reversal of 538858687 is 786858835.

538858687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538858687 - 2³ = 538858679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538858627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269429343 + 269429344.

It is an arithmetic number, because the mean of its divisors is an integer number (269429344).

Almost surely, 2^538858687 is an apocalyptic number.

538858687 is a deficient number, since it is larger than the sum of its proper divisors (1).

538858687 is an equidigital number, since it uses as much as digits as its factorization.

538858687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12902400, while the sum is 58.

The square root of 538858687 is about 23213.3299420828. The cubic root of 538858687 is about 813.7511765961.

It can be divided in two parts, 538 and 858687, that multiplied together give a triangular number (461973606 = T₃₀₃₉₆).

The spelling of 538858687 in words is "five hundred thirty-eight million, eight hundred fifty-eight thousand, six hundred eighty-seven".