689354293 has 2 divisors, whose sum is σ = 689354294. Its totient is φ = 689354292.

The previous prime is 689354261. The next prime is 689354299. The reversal of 689354293 is 392453986.

689354293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 632170449 + 57183844 = 25143^2 + 7562^2 .

It is a cyclic number.

It is not a de Polignac number, because 689354293 - 2⁵ = 689354261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689354299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344677146 + 344677147.

It is an arithmetic number, because the mean of its divisors is an integer number (344677147).

Almost surely, 2^689354293 is an apocalyptic number.

It is an amenable number.

689354293 is a deficient number, since it is larger than the sum of its proper divisors (1).

689354293 is an equidigital number, since it uses as much as digits as its factorization.

689354293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 49.

The square root of 689354293 is about 26255.5573736304. The cubic root of 689354293 is about 883.3798624436.

The spelling of 689354293 in words is "six hundred eighty-nine million, three hundred fifty-four thousand, two hundred ninety-three".