8732161 has 8 divisors (see below), whose sum is σ = 9069480. Its totient is φ = 8397312.

The previous prime is 8732159. The next prime is 8732189. The reversal of 8732161 is 1612378.

It can be written as a sum of positive squares in 4 ways, for example, as 65025 + 8667136 = 255^2 + 2944^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8732161 - 2¹ = 8732159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8732261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9811 + ... + 10663.

It is an arithmetic number, because the mean of its divisors is an integer number (1133685).

Almost surely, 2^8732161 is an apocalyptic number.

It is an amenable number.

8732161 is a deficient number, since it is larger than the sum of its proper divisors (337319).

8732161 is a wasteful number, since it uses less digits than its factorization.

8732161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its digits is 2016, while the sum is 28.

The square root of 8732161 is about 2955.0230117547. The cubic root of 8732161 is about 205.9241323663.

The spelling of 8732161 in words is "eight million, seven hundred thirty-two thousand, one hundred sixty-one".