231883686 has 12 divisors (see below), whose sum is σ = 502414692. Its totient is φ = 77294556.

The previous prime is 231883679. The next prime is 231883709. The reversal of 231883686 is 686388132.

231883686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6441196 + ... + 6441231.

It is an arithmetic number, because the mean of its divisors is an integer number (41867891).

Almost surely, 2^231883686 is an apocalyptic number.

231883686 is an abundant number, since it is smaller than the sum of its proper divisors (270531006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231883686 is a wasteful number, since it uses less digits than its factorization.

231883686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12882435 (or 12882432 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 231883686 is about 15227.7275389337. The cubic root of 231883686 is about 614.3606601958.

The spelling of 231883686 in words is "two hundred thirty-one million, eight hundred eighty-three thousand, six hundred eighty-six".