538836687 has 12 divisors (see below), whose sum is σ = 778554504. Its totient is φ = 359116080.

The previous prime is 538836659. The next prime is 538836691. The reversal of 538836687 is 786638835.

It is a happy number.

It is not a de Polignac number, because 538836687 - 2¹⁶ = 538771151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538836887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32512 + ... + 46202.

It is an arithmetic number, because the mean of its divisors is an integer number (64879542).

Almost surely, 2^538836687 is an apocalyptic number.

538836687 is a deficient number, since it is larger than the sum of its proper divisors (239717817).

538836687 is a wasteful number, since it uses less digits than its factorization.

538836687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18070 (or 18067 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 538836687 is about 23212.8560715824. The cubic root of 538836687 is about 813.7401020974.

It can be divided in two parts, 538 and 836687, that added together give a square (837225 = 915²).

The spelling of 538836687 in words is "five hundred thirty-eight million, eight hundred thirty-six thousand, six hundred eighty-seven".