861447470 has 32 divisors (see below), whose sum is σ = 1672151040. Its totient is φ = 317640960.

The previous prime is 861447469. The next prime is 861447481. The reversal of 861447470 is 74744168.

861447470 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 15 ways as a sum of consecutive naturals, for example, 101075 + ... + 109265.

It is an arithmetic number, because the mean of its divisors is an integer number (52254720).

Almost surely, 2^861447470 is an apocalyptic number.

861447470 is a deficient number, since it is larger than the sum of its proper divisors (810703570).

861447470 is a wasteful number, since it uses less digits than its factorization.

861447470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 861447470 is about 29350.4253802223. The cubic root of 861447470 is about 951.5017687834.

The spelling of 861447470 in words is "eight hundred sixty-one million, four hundred forty-seven thousand, four hundred seventy".