689846331 has 4 divisors (see below), whose sum is σ = 919795112. Its totient is φ = 459897552.

The previous prime is 689846327. The next prime is 689846341. The reversal of 689846331 is 133648986.

689846331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 689846331 - 2² = 689846327 is a prime.

It is a super-2 number, since 2×689846331² = 951775920788323122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689846321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114974386 + ... + 114974391.

It is an arithmetic number, because the mean of its divisors is an integer number (229948778).

Almost surely, 2^689846331 is an apocalyptic number.

689846331 is a deficient number, since it is larger than the sum of its proper divisors (229948781).

689846331 is a wasteful number, since it uses less digits than its factorization.

689846331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229948780.

The product of its digits is 746496, while the sum is 48.

The square root of 689846331 is about 26264.9258708263. The cubic root of 689846331 is about 883.5899881085.

The spelling of 689846331 in words is "six hundred eighty-nine million, eight hundred forty-six thousand, three hundred thirty-one".