872943085 has 12 divisors (see below), whose sum is σ = 1218557628. Its totient is φ = 598589376.

The previous prime is 872943073. The next prime is 872943091. The reversal of 872943085 is 580349278.

It can be written as a sum of positive squares in 2 ways, for example, as 431060644 + 441882441 = 20762^2 + 21021^2 .

It is not a de Polignac number, because 872943085 - 2⁹ = 872942573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1781272 + ... + 1781761.

It is an arithmetic number, because the mean of its divisors is an integer number (101546469).

Almost surely, 2^872943085 is an apocalyptic number.

It is an amenable number.

872943085 is a deficient number, since it is larger than the sum of its proper divisors (345614543).

872943085 is a wasteful number, since it uses less digits than its factorization.

872943085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563052 (or 3563045 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 872943085 is about 29545.6102492401. The cubic root of 872943085 is about 955.7155296559.

The spelling of 872943085 in words is "eight hundred seventy-two million, nine hundred forty-three thousand, eighty-five".