4093138217 has 12 divisors (see below), whose sum is σ = 4768518996. Its totient is φ = 3503162880.

The previous prime is 4093138211. The next prime is 4093138241. The reversal of 4093138217 is 7128313904.

It can be written as a sum of positive squares in 2 ways, for example, as 1672891801 + 2420246416 = 40901^2 + 49196^2 .

It is not a de Polignac number, because 4093138217 - 2¹⁰ = 4093137193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4093138211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29084 + ... + 95037.

It is an arithmetic number, because the mean of its divisors is an integer number (397376583).

Almost surely, 2^4093138217 is an apocalyptic number.

It is an amenable number.

4093138217 is a deficient number, since it is larger than the sum of its proper divisors (675380779).

4093138217 is a wasteful number, since it uses less digits than its factorization.

4093138217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124808 (or 124801 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 4093138217 is about 63977.6384137458. The cubic root of 4093138217 is about 1599.6272851892.

The spelling of 4093138217 in words is "four billion, ninety-three million, one hundred thirty-eight thousand, two hundred seventeen".