689316583 has 2 divisors, whose sum is σ = 689316584. Its totient is φ = 689316582.

The previous prime is 689316557. The next prime is 689316643. The reversal of 689316583 is 385613986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 689316583 - 2⁹ = 689316071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689316553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344658291 + 344658292.

It is an arithmetic number, because the mean of its divisors is an integer number (344658292).

Almost surely, 2^689316583 is an apocalyptic number.

689316583 is a deficient number, since it is larger than the sum of its proper divisors (1).

689316583 is an equidigital number, since it uses as much as digits as its factorization.

689316583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The square root of 689316583 is about 26254.8392301305. The cubic root of 689316583 is about 883.3637541994.

The spelling of 689316583 in words is "six hundred eighty-nine million, three hundred sixteen thousand, five hundred eighty-three".