872732085 has 32 divisors (see below), whose sum is σ = 1433308800. Its totient is φ = 453212928.

The previous prime is 872732083. The next prime is 872732089. The reversal of 872732085 is 580237278.

It is not a de Polignac number, because 872732085 - 2¹ = 872732083 is a prime.

It is a super-2 number, since 2×872732085² = 1523322584376894450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872732083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223167 + ... + 227043.

It is an arithmetic number, because the mean of its divisors is an integer number (44790900).

Almost surely, 2^872732085 is an apocalyptic number.

It is an amenable number.

872732085 is a deficient number, since it is larger than the sum of its proper divisors (560576715).

872732085 is a wasteful number, since it uses less digits than its factorization.

872732085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 872732085 is about 29542.0392830285. The cubic root of 872732085 is about 955.6385211125.

The spelling of 872732085 in words is "eight hundred seventy-two million, seven hundred thirty-two thousand, eighty-five".