8505283693 has 2 divisors, whose sum is σ = 8505283694. Its totient is φ = 8505283692.

The previous prime is 8505283687. The next prime is 8505283739. The reversal of 8505283693 is 3963825058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6348424329 + 2156859364 = 79677^2 + 46442^2 .

It is a cyclic number.

It is not a de Polignac number, because 8505283693 - 2²⁵ = 8471729261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8505283993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4252641846 + 4252641847.

It is an arithmetic number, because the mean of its divisors is an integer number (4252641847).

Almost surely, 2^8505283693 is an apocalyptic number.

It is an amenable number.

8505283693 is a deficient number, since it is larger than the sum of its proper divisors (1).

8505283693 is an equidigital number, since it uses as much as digits as its factorization.

8505283693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The square root of 8505283693 is about 92224.0949698071. The cubic root of 8505283693 is about 2041.2503302809.

The spelling of 8505283693 in words is "eight billion, five hundred five million, two hundred eighty-three thousand, six hundred ninety-three".