864782473 has 16 divisors (see below), whose sum is σ = 925992000. Its totient is φ = 805254912.

The previous prime is 864782449. The next prime is 864782509. The reversal of 864782473 is 374287468.

It is not a de Polignac number, because 864782473 - 2²⁹ = 327911561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864782423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301261 + ... + 304117.

It is an arithmetic number, because the mean of its divisors is an integer number (57874500).

Almost surely, 2^864782473 is an apocalyptic number.

It is an amenable number.

864782473 is a deficient number, since it is larger than the sum of its proper divisors (61209527).

864782473 is a wasteful number, since it uses less digits than its factorization.

864782473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144.

The product of its digits is 1806336, while the sum is 49.

The square root of 864782473 is about 29407.1840372382. The cubic root of 864782473 is about 952.7280672196.

The spelling of 864782473 in words is "eight hundred sixty-four million, seven hundred eighty-two thousand, four hundred seventy-three".