8489695939 has 2 divisors, whose sum is σ = 8489695940. Its totient is φ = 8489695938.

The previous prime is 8489695937. The next prime is 8489695969. The reversal of 8489695939 is 9395969848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8489695939 - 2¹ = 8489695937 is a prime.

It is a super-3 number, since 3×8489695939³ (a number of 31 digits) contains 333 as substring.

Together with 8489695937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8489695931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244847969 + 4244847970.

It is an arithmetic number, because the mean of its divisors is an integer number (4244847970).

Almost surely, 2^8489695939 is an apocalyptic number.

8489695939 is a deficient number, since it is larger than the sum of its proper divisors (1).

8489695939 is an equidigital number, since it uses as much as digits as its factorization.

8489695939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151165440, while the sum is 70.

The square root of 8489695939 is about 92139.5460103858. The cubic root of 8489695939 is about 2040.0025582276.

The spelling of 8489695939 in words is "eight billion, four hundred eighty-nine million, six hundred ninety-five thousand, nine hundred thirty-nine".