864643466 has 16 divisors (see below), whose sum is σ = 1335657600. Its totient is φ = 419610048.

The previous prime is 864643459. The next prime is 864643471. The reversal of 864643466 is 664346468.

It is a self number, because there is not a number n which added to its sum of digits gives 864643466.

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, 37055 + ... + 55698.

It is an arithmetic number, because the mean of its divisors is an integer number (83478600).

Almost surely, 2^864643466 is an apocalyptic number.

864643466 is a deficient number, since it is larger than the sum of its proper divisors (471014134).

864643466 is a wasteful number, since it uses less digits than its factorization.

864643466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92893.

The product of its digits is 1990656, while the sum is 47.

The square root of 864643466 is about 29404.8204551567. The cubic root of 864643466 is about 952.6770166294.

The spelling of 864643466 in words is "eight hundred sixty-four million, six hundred forty-three thousand, four hundred sixty-six".