689159057 has 8 divisors (see below), whose sum is σ = 697461312. Its totient is φ = 680886000.

The previous prime is 689159033. The next prime is 689159071. The reversal of 689159057 is 750951986.

It is a happy number.

689159057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 689159057 - 2¹⁸ = 688896913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689158996 and 689159014.

It is not an unprimeable number, because it can be changed into a prime (689159027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42182 + ... + 56192.

It is an arithmetic number, because the mean of its divisors is an integer number (87182664).

Almost surely, 2^689159057 is an apocalyptic number.

It is an amenable number.

689159057 is a deficient number, since it is larger than the sum of its proper divisors (8302255).

689159057 is a wasteful number, since it uses less digits than its factorization.

689159057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14599.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 689159057 is about 26251.8391165267. The cubic root of 689159057 is about 883.2964588697.

The spelling of 689159057 in words is "six hundred eighty-nine million, one hundred fifty-nine thousand, fifty-seven".