4893447857 has 2 divisors, whose sum is σ = 4893447858. Its totient is φ = 4893447856.

The previous prime is 4893447833. The next prime is 4893447863. The reversal of 4893447857 is 7587443984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4457431696 + 436016161 = 66764^2 + 20881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4893447857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4893447796 and 4893447805.

It is not a weakly prime, because it can be changed into another prime (4893447827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2446723928 + 2446723929.

It is an arithmetic number, because the mean of its divisors is an integer number (2446723929).

Almost surely, 2^4893447857 is an apocalyptic number.

It is an amenable number.

4893447857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4893447857 is an equidigital number, since it uses as much as digits as its factorization.

4893447857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27095040, while the sum is 59.

The square root of 4893447857 is about 69953.1833228481. The cubic root of 4893447857 is about 1697.7418526464.

The spelling of 4893447857 in words is "four billion, eight hundred ninety-three million, four hundred forty-seven thousand, eight hundred fifty-seven".