861693132 has 24 divisors (see below), whose sum is σ = 2036070400. Its totient is φ = 283594896.

The previous prime is 861693103. The next prime is 861693167. The reversal of 861693132 is 231396168.

861693132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453532 + ... + 455427.

Almost surely, 2^861693132 is an apocalyptic number.

It is an amenable number.

861693132 is an abundant number, since it is smaller than the sum of its proper divisors (1174377268).

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

861693132 is a wasteful number, since it uses less digits than its factorization.

861693132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909045 (or 909043 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 861693132 is about 29354.6100638384. The cubic root of 861693132 is about 951.5922078872.

The spelling of 861693132 in words is "eight hundred sixty-one million, six hundred ninety-three thousand, one hundred thirty-two".