8406161 has 2 divisors, whose sum is σ = 8406162. Its totient is φ = 8406160.

The previous prime is 8406127. The next prime is 8406173. The reversal of 8406161 is 1616048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5909761 + 2496400 = 2431^2 + 1580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8406161 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8406161.

It is not a weakly prime, because it can be changed into another prime (8406191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4203080 + 4203081.

It is an arithmetic number, because the mean of its divisors is an integer number (4203081).

Almost surely, 2^8406161 is an apocalyptic number.

It is an amenable number.

8406161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406161 is an equidigital number, since it uses as much as digits as its factorization.

8406161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 8406161 is about 2899.3380278953. The cubic root of 8406161 is about 203.3289577726.

The spelling of 8406161 in words is "eight million, four hundred six thousand, one hundred sixty-one".