8346578243 has 2 divisors, whose sum is σ = 8346578244. Its totient is φ = 8346578242.

The previous prime is 8346578221. The next prime is 8346578263. The reversal of 8346578243 is 3428756438.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8346578243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8346578191 and 8346578200.

It is not a weakly prime, because it can be changed into another prime (8346578203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4173289121 + 4173289122.

It is an arithmetic number, because the mean of its divisors is an integer number (4173289122).

Almost surely, 2^8346578243 is an apocalyptic number.

8346578243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8346578243 is an equidigital number, since it uses as much as digits as its factorization.

8346578243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 50.

The square root of 8346578243 is about 91359.6094726767. The cubic root of 8346578243 is about 2028.4742061805.

The spelling of 8346578243 in words is "eight billion, three hundred forty-six million, five hundred seventy-eight thousand, two hundred forty-three".