538686884 has 6 divisors (see below), whose sum is σ = 942702054. Its totient is φ = 269343440.

The previous prime is 538686853. The next prime is 538686923. The reversal of 538686884 is 488686835.

It can be written as a sum of positive squares in only one way, i.e., 395214400 + 143472484 = 19880^2 + 11978^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67335857 + ... + 67335864.

It is an arithmetic number, because the mean of its divisors is an integer number (157117009).

Almost surely, 2^538686884 is an apocalyptic number.

It is an amenable number.

538686884 is a deficient number, since it is larger than the sum of its proper divisors (404015170).

538686884 is a wasteful number, since it uses less digits than its factorization.

538686884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134671725 (or 134671723 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 56.

The square root of 538686884 is about 23209.6291224138. The cubic root of 538686884 is about 813.6646853030.

The spelling of 538686884 in words is "five hundred thirty-eight million, six hundred eighty-six thousand, eight hundred eighty-four".