83328689 has 2 divisors, whose sum is σ = 83328690. Its totient is φ = 83328688.

The previous prime is 83328671. The next prime is 83328719. The reversal of 83328689 is 98682338.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 664225 = 9092^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 83328689 - 2²⁴ = 66551473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83328649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41664344 + 41664345.

It is an arithmetic number, because the mean of its divisors is an integer number (41664345).

Almost surely, 2^83328689 is an apocalyptic number.

It is an amenable number.

83328689 is a deficient number, since it is larger than the sum of its proper divisors (1).

83328689 is an equidigital number, since it uses as much as digits as its factorization.

83328689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 83328689 is about 9128.4549075953. The cubic root of 83328689 is about 436.7821178197.

The spelling of 83328689 in words is "eighty-three million, three hundred twenty-eight thousand, six hundred eighty-nine".