861447096 has 128 divisors (see below), whose sum is σ = 2492006400. Its totient is φ = 275425920.

The previous prime is 861447091. The next prime is 861447133. The reversal of 861447096 is 690744168.

861447096 is a `hidden beast` number, since 86 + 14 + 470 + 96 = 666.

861447096 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 not an unprimeable number, because it can be changed into a prime (861447091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 849886 + ... + 850898.

It is an arithmetic number, because the mean of its divisors is an integer number (19468800).

Almost surely, 2^861447096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 861447096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246003200).

861447096 is an abundant number, since it is smaller than the sum of its proper divisors (1630559304).

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

861447096 is a wasteful number, since it uses less digits than its factorization.

861447096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 861447096 is about 29350.4190089341. The cubic root of 861447096 is about 951.5016310843.

The spelling of 861447096 in words is "eight hundred sixty-one million, four hundred forty-seven thousand, ninety-six".