864861470 has 16 divisors (see below), whose sum is σ = 1698273648. Its totient is φ = 314495040.

The previous prime is 864861469. The next prime is 864861493. The reversal of 864861470 is 74168468.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3931079 + ... + 3931298.

It is an arithmetic number, because the mean of its divisors is an integer number (106142103).

Almost surely, 2^864861470 is an apocalyptic number.

864861470 is a deficient number, since it is larger than the sum of its proper divisors (833412178).

864861470 is a wasteful number, since it uses less digits than its factorization.

864861470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7862395.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 864861470 is about 29408.5271647527. The cubic root of 864861470 is about 952.7570765832.

The spelling of 864861470 in words is "eight hundred sixty-four million, eight hundred sixty-one thousand, four hundred seventy".