8245476409 has 2 divisors, whose sum is σ = 8245476410. Its totient is φ = 8245476408.

The previous prime is 8245476373. The next prime is 8245476413. The reversal of 8245476409 is 9046745428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8245184809 + 291600 = 90803^2 + 540^2 .

It is a cyclic number.

It is not a de Polignac number, because 8245476409 - 2²³ = 8237087801 is a prime.

It is a super-2 number, since 2×8245476409² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8245476479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4122738204 + 4122738205.

It is an arithmetic number, because the mean of its divisors is an integer number (4122738205).

Almost surely, 2^8245476409 is an apocalyptic number.

It is an amenable number.

8245476409 is a deficient number, since it is larger than the sum of its proper divisors (1).

8245476409 is an equidigital number, since it uses as much as digits as its factorization.

8245476409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 8245476409 is about 90804.6056596250. The cubic root of 8245476409 is about 2020.2506313367.

The spelling of 8245476409 in words is "eight billion, two hundred forty-five million, four hundred seventy-six thousand, four hundred nine".