4394923493 has 2 divisors, whose sum is σ = 4394923494. Its totient is φ = 4394923492.

The previous prime is 4394923483. The next prime is 4394923543. The reversal of 4394923493 is 3943294934.

4394923493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (4394923543) can be obtained adding 4394923493 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4381513249 + 13410244 = 66193^2 + 3662^2 .

It is a cyclic number.

It is not a de Polignac number, because 4394923493 - 2²⁴ = 4378146277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4394923483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197461746 + 2197461747.

It is an arithmetic number, because the mean of its divisors is an integer number (2197461747).

Almost surely, 2^4394923493 is an apocalyptic number.

It is an amenable number.

4394923493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394923493 is an equidigital number, since it uses as much as digits as its factorization.

4394923493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 50.

The square root of 4394923493 is about 66294.2191522006. The cubic root of 4394923493 is about 1638.0121032032.

The spelling of 4394923493 in words is "four billion, three hundred ninety-four million, nine hundred twenty-three thousand, four hundred ninety-three".