4394124817 has 2 divisors, whose sum is σ = 4394124818. Its totient is φ = 4394124816.

The previous prime is 4394124811. The next prime is 4394124877. The reversal of 4394124817 is 7184214934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2213608401 + 2180516416 = 47049^2 + 46696^2 .

It is a cyclic number.

It is not a de Polignac number, because 4394124817 - 2¹¹ = 4394122769 is a prime.

It is not a weakly prime, because it can be changed into another prime (4394124811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197062408 + 2197062409.

It is an arithmetic number, because the mean of its divisors is an integer number (2197062409).

Almost surely, 2^4394124817 is an apocalyptic number.

It is an amenable number.

4394124817 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394124817 is an equidigital number, since it uses as much as digits as its factorization.

4394124817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 4394124817 is about 66288.1951556987. The cubic root of 4394124817 is about 1637.9128735494.

The spelling of 4394124817 in words is "four billion, three hundred ninety-four million, one hundred twenty-four thousand, eight hundred seventeen".