4393646041 has 2 divisors, whose sum is σ = 4393646042. Its totient is φ = 4393646040.

The previous prime is 4393646029. The next prime is 4393646071. The reversal of 4393646041 is 1406463934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4299556041 + 94090000 = 65571^2 + 9700^2 .

It is a cyclic number.

It is not a de Polignac number, because 4393646041 - 2⁵ = 4393646009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4393645985 and 4393646003.

It is not a weakly prime, because it can be changed into another prime (4393646071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2196823020 + 2196823021.

It is an arithmetic number, because the mean of its divisors is an integer number (2196823021).

Almost surely, 2^4393646041 is an apocalyptic number.

It is an amenable number.

4393646041 is a deficient number, since it is larger than the sum of its proper divisors (1).

4393646041 is an equidigital number, since it uses as much as digits as its factorization.

4393646041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 4393646041 is about 66284.5837355867. The cubic root of 4393646041 is about 1637.8533833673.

The spelling of 4393646041 in words is "four billion, three hundred ninety-three million, six hundred forty-six thousand, forty-one".