7849384897 has 2 divisors, whose sum is σ = 7849384898. Its totient is φ = 7849384896.

The previous prime is 7849384889. The next prime is 7849384909. The reversal of 7849384897 is 7984839487.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5966172081 + 1883212816 = 77241^2 + 43396^2 .

It is a cyclic number.

It is not a de Polignac number, because 7849384897 - 2³ = 7849384889 is a prime.

It is a super-2 number, since 2×7849384897² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7849384817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3924692448 + 3924692449.

It is an arithmetic number, because the mean of its divisors is an integer number (3924692449).

Almost surely, 2^7849384897 is an apocalyptic number.

It is an amenable number.

7849384897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7849384897 is an equidigital number, since it uses as much as digits as its factorization.

7849384897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97542144, while the sum is 67.

The square root of 7849384897 is about 88596.7544382976. The cubic root of 7849384897 is about 1987.3691400307.

The spelling of 7849384897 in words is "seven billion, eight hundred forty-nine million, three hundred eighty-four thousand, eight hundred ninety-seven".