8672161 has 2 divisors, whose sum is σ = 8672162. Its totient is φ = 8672160.

The previous prime is 8672117. The next prime is 8672177. The reversal of 8672161 is 1612768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8643600 + 28561 = 2940^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 8672161 - 2¹³ = 8663969 is a prime.

It is not a weakly prime, because it can be changed into another prime (8672101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4336080 + 4336081.

It is an arithmetic number, because the mean of its divisors is an integer number (4336081).

Almost surely, 2^8672161 is an apocalyptic number.

It is an amenable number.

8672161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8672161 is an equidigital number, since it uses as much as digits as its factorization.

8672161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 8672161 is about 2944.8533070426. The cubic root of 8672161 is about 205.4514026804.

The spelling of 8672161 in words is "eight million, six hundred seventy-two thousand, one hundred sixty-one".