4197321493 has 2 divisors, whose sum is σ = 4197321494. Its totient is φ = 4197321492.

The previous prime is 4197321487. The next prime is 4197321571. The reversal of 4197321493 is 3941237914.

4197321493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3930913809 + 266407684 = 62697^2 + 16322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4197321493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197321433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098660746 + 2098660747.

It is an arithmetic number, because the mean of its divisors is an integer number (2098660747).

Almost surely, 2^4197321493 is an apocalyptic number.

It is an amenable number.

4197321493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197321493 is an equidigital number, since it uses as much as digits as its factorization.

4197321493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 4197321493 is about 64786.7385581339. The cubic root of 4197321493 is about 1613.0855905540.

The spelling of 4197321493 in words is "four billion, one hundred ninety-seven million, three hundred twenty-one thousand, four hundred ninety-three".