538686885 has 32 divisors (see below), whose sum is σ = 965676672. Its totient is φ = 254119680.

The previous prime is 538686853. The next prime is 538686923. The reversal of 538686885 is 588686835.

It is not a de Polignac number, because 538686885 - 2⁵ = 538686853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38014 + ... + 50223.

It is an arithmetic number, because the mean of its divisors is an integer number (30177396).

Almost surely, 2^538686885 is an apocalyptic number.

538686885 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

538686885 is a deficient number, since it is larger than the sum of its proper divisors (426989787).

538686885 is a wasteful number, since it uses less digits than its factorization.

538686885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88293.

The product of its digits is 11059200, while the sum is 57.

The square root of 538686885 is about 23209.6291439566. The cubic root of 538686885 is about 813.6646858065.

The spelling of 538686885 in words is "five hundred thirty-eight million, six hundred eighty-six thousand, eight hundred eighty-five".