872896161 has 32 divisors (see below), whose sum is σ = 1289882880. Its totient is φ = 522266624.

The previous prime is 872896139. The next prime is 872896169. The reversal of 872896161 is 161698278.

It is a cyclic number.

It is not a de Polignac number, because 872896161 - 2⁹ = 872895649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 872896161.

It is not an unprimeable number, because it can be changed into a prime (872896169) 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 31 ways as a sum of consecutive naturals, for example, 455341 + ... + 457253.

It is an arithmetic number, because the mean of its divisors is an integer number (40308840).

Almost surely, 2^872896161 is an apocalyptic number.

It is an amenable number.

872896161 is a deficient number, since it is larger than the sum of its proper divisors (416986719).

872896161 is a wasteful number, since it uses less digits than its factorization.

872896161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345.

The product of its digits is 290304, while the sum is 48.

The square root of 872896161 is about 29544.8161442917. The cubic root of 872896161 is about 955.6984049048.

The spelling of 872896161 in words is "eight hundred seventy-two million, eight hundred ninety-six thousand, one hundred sixty-one".