689159357 has 4 divisors (see below), whose sum is σ = 711390336. Its totient is φ = 666928380.

The previous prime is 689159333. The next prime is 689159369. The reversal of 689159357 is 753951986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 689159357 - 2¹⁰ = 689158333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689159299 and 689159308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689156357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11115443 + ... + 11115504.

It is an arithmetic number, because the mean of its divisors is an integer number (177847584).

Almost surely, 2^689159357 is an apocalyptic number.

It is an amenable number.

689159357 is a deficient number, since it is larger than the sum of its proper divisors (22230979).

689159357 is a wasteful number, since it uses less digits than its factorization.

689159357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22230978.

The product of its digits is 2041200, while the sum is 53.

The square root of 689159357 is about 26251.8448304114. The cubic root of 689159357 is about 883.2965870399.

The spelling of 689159357 in words is "six hundred eighty-nine million, one hundred fifty-nine thousand, three hundred fifty-seven".