8244689653 has 2 divisors, whose sum is σ = 8244689654. Its totient is φ = 8244689652.

The previous prime is 8244689617. The next prime is 8244689659. The reversal of 8244689653 is 3569864428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5971116529 + 2273573124 = 77273^2 + 47682^2 .

It is a cyclic number.

It is not a de Polignac number, because 8244689653 - 2²⁵ = 8211135221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8244689594 and 8244689603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8244689659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4122344826 + 4122344827.

It is an arithmetic number, because the mean of its divisors is an integer number (4122344827).

Almost surely, 2^8244689653 is an apocalyptic number.

It is an amenable number.

8244689653 is a deficient number, since it is larger than the sum of its proper divisors (1).

8244689653 is an equidigital number, since it uses as much as digits as its factorization.

8244689653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9953280, while the sum is 55.

The square root of 8244689653 is about 90800.2734191919. The cubic root of 8244689653 is about 2020.1863740889.

The spelling of 8244689653 in words is "eight billion, two hundred forty-four million, six hundred eighty-nine thousand, six hundred fifty-three".