8242474789 has 2 divisors, whose sum is σ = 8242474790. Its totient is φ = 8242474788.

The previous prime is 8242474783. The next prime is 8242474831. The reversal of 8242474789 is 9874742428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6443272900 + 1799201889 = 80270^2 + 42417^2 .

It is a cyclic number.

It is not a de Polignac number, because 8242474789 - 2⁷ = 8242474661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8242474783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4121237394 + 4121237395.

It is an arithmetic number, because the mean of its divisors is an integer number (4121237395).

Almost surely, 2^8242474789 is an apocalyptic number.

It is an amenable number.

8242474789 is a deficient number, since it is larger than the sum of its proper divisors (1).

8242474789 is an equidigital number, since it uses as much as digits as its factorization.

8242474789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7225344, while the sum is 55.

The square root of 8242474789 is about 90788.0762490317. The cubic root of 8242474789 is about 2020.0054560680.

The spelling of 8242474789 in words is "eight billion, two hundred forty-two million, four hundred seventy-four thousand, seven hundred eighty-nine".