4173872617 has 2 divisors, whose sum is σ = 4173872618. Its totient is φ = 4173872616.

The previous prime is 4173872587. The next prime is 4173872707. The reversal of 4173872617 is 7162783714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3511273536 + 662599081 = 59256^2 + 25741^2 .

It is a cyclic number.

It is not a de Polignac number, because 4173872617 - 2²³ = 4165484009 is a prime.

It is not a weakly prime, because it can be changed into another prime (4173872117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086936308 + 2086936309.

It is an arithmetic number, because the mean of its divisors is an integer number (2086936309).

Almost surely, 2^4173872617 is an apocalyptic number.

It is an amenable number.

4173872617 is a deficient number, since it is larger than the sum of its proper divisors (1).

4173872617 is an equidigital number, since it uses as much as digits as its factorization.

4173872617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 46.

The square root of 4173872617 is about 64605.5153760110. The cubic root of 4173872617 is about 1610.0760759032.

The spelling of 4173872617 in words is "four billion, one hundred seventy-three million, eight hundred seventy-two thousand, six hundred seventeen".