8406173 has 2 divisors, whose sum is σ = 8406174. Its totient is φ = 8406172.

The previous prime is 8406161. The next prime is 8406191. The reversal of 8406173 is 3716048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8048569 + 357604 = 2837^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 8406173 - 2¹⁰ = 8405149 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8406103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4203086 + 4203087.

It is an arithmetic number, because the mean of its divisors is an integer number (4203087).

Almost surely, 2^8406173 is an apocalyptic number.

It is an amenable number.

8406173 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406173 is an equidigital number, since it uses as much as digits as its factorization.

8406173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 8406173 is about 2899.3400973325. The cubic root of 8406173 is about 203.3290545249.

The spelling of 8406173 in words is "eight million, four hundred six thousand, one hundred seventy-three".