8023820653 has 2 divisors, whose sum is σ = 8023820654. Its totient is φ = 8023820652.

The previous prime is 8023820591. The next prime is 8023820657. The reversal of 8023820653 is 3560283208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5885498089 + 2138322564 = 76717^2 + 46242^2 .

It is a cyclic number.

It is not a de Polignac number, because 8023820653 - 2⁹ = 8023820141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8023820657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4011910326 + 4011910327.

It is an arithmetic number, because the mean of its divisors is an integer number (4011910327).

Almost surely, 2^8023820653 is an apocalyptic number.

It is an amenable number.

8023820653 is a deficient number, since it is larger than the sum of its proper divisors (1).

8023820653 is an equidigital number, since it uses as much as digits as its factorization.

8023820653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 8023820653 is about 89575.7816209270. The cubic root of 8023820653 is about 2001.9830874489.

The spelling of 8023820653 in words is "eight billion, twenty-three million, eight hundred twenty thousand, six hundred fifty-three".