861088345 has 16 divisors (see below), whose sum is σ = 1116747072. Its totient is φ = 633620160.

The previous prime is 861088331. The next prime is 861088357. The reversal of 861088345 is 543880168.

861088345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 861088345 - 2⁵ = 861088313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5011 + ... + 41800.

It is an arithmetic number, because the mean of its divisors is an integer number (69796692).

Almost surely, 2^861088345 is an apocalyptic number.

It is an amenable number.

861088345 is a deficient number, since it is larger than the sum of its proper divisors (255658727).

861088345 is a wasteful number, since it uses less digits than its factorization.

861088345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47112.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 861088345 is about 29344.3068584010. The cubic root of 861088345 is about 951.3695279600.

The spelling of 861088345 in words is "eight hundred sixty-one million, eighty-eight thousand, three hundred forty-five".