8489633693 has 2 divisors, whose sum is σ = 8489633694. Its totient is φ = 8489633692.

The previous prime is 8489633657. The next prime is 8489633729. The reversal of 8489633693 is 3963369848.

It is a balanced prime because it is at equal distance from previous prime (8489633657) and next prime (8489633729).

It can be written as a sum of positive squares in only one way, i.e., 6250167364 + 2239466329 = 79058^2 + 47323^2 .

It is a cyclic number.

It is not a de Polignac number, because 8489633693 - 2⁸ = 8489633437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8489633393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244816846 + 4244816847.

It is an arithmetic number, because the mean of its divisors is an integer number (4244816847).

Almost surely, 2^8489633693 is an apocalyptic number.

It is an amenable number.

8489633693 is a deficient number, since it is larger than the sum of its proper divisors (1).

8489633693 is an equidigital number, since it uses as much as digits as its factorization.

8489633693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 59.

The square root of 8489633693 is about 92139.2082286363. The cubic root of 8489633693 is about 2039.9975724853.

The spelling of 8489633693 in words is "eight billion, four hundred eighty-nine million, six hundred thirty-three thousand, six hundred ninety-three".