8243672377 has 2 divisors, whose sum is σ = 8243672378. Its totient is φ = 8243672376.

The previous prime is 8243672341. The next prime is 8243672401. The reversal of 8243672377 is 7732763428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8200389136 + 43283241 = 90556^2 + 6579^2 .

It is a cyclic number.

It is not a de Polignac number, because 8243672377 - 2¹¹ = 8243670329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8243672377.

It is not a weakly prime, because it can be changed into another prime (8243672477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4121836188 + 4121836189.

It is an arithmetic number, because the mean of its divisors is an integer number (4121836189).

Almost surely, 2^8243672377 is an apocalyptic number.

It is an amenable number.

8243672377 is a deficient number, since it is larger than the sum of its proper divisors (1).

8243672377 is an equidigital number, since it uses as much as digits as its factorization.

8243672377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 49.

The square root of 8243672377 is about 90794.6715231681. The cubic root of 8243672377 is about 2020.1032833672.

The spelling of 8243672377 in words is "eight billion, two hundred forty-three million, six hundred seventy-two thousand, three hundred seventy-seven".