538726687 has 2 divisors, whose sum is σ = 538726688. Its totient is φ = 538726686.

The previous prime is 538726679. The next prime is 538726739. The reversal of 538726687 is 786627835.

It is an a-pointer prime, because the next prime (538726739) can be obtained adding 538726687 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538726687 - 2³ = 538726679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538726187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269363343 + 269363344.

It is an arithmetic number, because the mean of its divisors is an integer number (269363344).

Almost surely, 2^538726687 is an apocalyptic number.

538726687 is a deficient number, since it is larger than the sum of its proper divisors (1).

538726687 is an equidigital number, since it uses as much as digits as its factorization.

538726687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 52.

The square root of 538726687 is about 23210.4865739605. The cubic root of 538726687 is about 813.6847250817.

The spelling of 538726687 in words is "five hundred thirty-eight million, seven hundred twenty-six thousand, six hundred eighty-seven".