8438411497 has 2 divisors, whose sum is σ = 8438411498. Its totient is φ = 8438411496.

The previous prime is 8438411491. The next prime is 8438411543. The reversal of 8438411497 is 7941148348.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8400822336 + 37589161 = 91656^2 + 6131^2 .

It is a cyclic number.

It is not a de Polignac number, because 8438411497 - 2²³ = 8430022889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8438411497.

It is not a weakly prime, because it can be changed into another prime (8438411491) 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, 4219205748 + 4219205749.

It is an arithmetic number, because the mean of its divisors is an integer number (4219205749).

Almost surely, 2^8438411497 is an apocalyptic number.

It is an amenable number.

8438411497 is a deficient number, since it is larger than the sum of its proper divisors (1).

8438411497 is an equidigital number, since it uses as much as digits as its factorization.

8438411497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 8438411497 is about 91860.8267816048. The cubic root of 8438411497 is about 2035.8865189477.

The spelling of 8438411497 in words is "eight billion, four hundred thirty-eight million, four hundred eleven thousand, four hundred ninety-seven".