689593357 has 16 divisors (see below), whose sum is σ = 731266560. Its totient is φ = 649368000.

The previous prime is 689593351. The next prime is 689593361. The reversal of 689593357 is 753395986.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 689593357 - 2²⁷ = 555375629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689593298 and 689593307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689593351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182863 + ... + 186595.

It is an arithmetic number, because the mean of its divisors is an integer number (45704160).

Almost surely, 2^689593357 is an apocalyptic number.

It is an amenable number.

689593357 is a deficient number, since it is larger than the sum of its proper divisors (41673203).

689593357 is a wasteful number, since it uses less digits than its factorization.

689593357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924.

The product of its digits is 6123600, while the sum is 55.

The square root of 689593357 is about 26260.1096151558. The cubic root of 689593357 is about 883.4819676155.

The spelling of 689593357 in words is "six hundred eighty-nine million, five hundred ninety-three thousand, three hundred fifty-seven".