689060887 has 8 divisors (see below), whose sum is σ = 722674656. Its totient is φ = 655751712.

The previous prime is 689060863. The next prime is 689060891. The reversal of 689060887 is 788060986.

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

It is a de Polignac number, because none of the positive numbers 2^k-689060887 is a prime.

It is a super-3 number, since 3×689060887³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689060807) 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 7 ways as a sum of consecutive naturals, for example, 71508 + ... + 80569.

It is an arithmetic number, because the mean of its divisors is an integer number (90334332).

Almost surely, 2^689060887 is an apocalyptic number.

689060887 is a deficient number, since it is larger than the sum of its proper divisors (33613769).

689060887 is a wasteful number, since it uses less digits than its factorization.

689060887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152297.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 689060887 is about 26249.9692761725. The cubic root of 689060887 is about 883.2545153202.

Subtracting 689060887 from its reverse (788060986), we obtain a palindrome (99000099).

The spelling of 689060887 in words is "six hundred eighty-nine million, sixty thousand, eight hundred eighty-seven".