753689 has 2 divisors, whose sum is σ = 753690. Its totient is φ = 753688.

The previous prime is 753679. The next prime is 753691. The reversal of 753689 is 986357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403225 + 350464 = 635^2 + 592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-753689 is a prime.

It is a Sophie Germain prime.

Together with 753691, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (753619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376844 + 376845.

It is an arithmetic number, because the mean of its divisors is an integer number (376845).

2⁷⁵³⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

753689 is a deficient number, since it is larger than the sum of its proper divisors (1).

753689 is an equidigital number, since it uses as much as digits as its factorization.

753689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 753689 is about 868.1526363492. The cubic root of 753689 is about 91.0047495810.

The spelling of 753689 in words is "seven hundred fifty-three thousand, six hundred eighty-nine".