689693331 has 8 divisors (see below), whose sum is σ = 967990720. Its totient is φ = 435595752.

The previous prime is 689693321. The next prime is 689693351. The reversal of 689693331 is 133396986.

It is a happy number.

689693331 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 not a de Polignac number, because 689693331 - 2⁵ = 689693299 is a prime.

It is a super-2 number, since 2×689693331² = 951353781651751122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689693311) 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, 6049885 + ... + 6049998.

It is an arithmetic number, because the mean of its divisors is an integer number (120998840).

Almost surely, 2^689693331 is an apocalyptic number.

689693331 is a deficient number, since it is larger than the sum of its proper divisors (278297389).

689693331 is a wasteful number, since it uses less digits than its factorization.

689693331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12099905.

The product of its digits is 629856, while the sum is 48.

The square root of 689693331 is about 26262.0130797317. The cubic root of 689693331 is about 883.5246599053.

The spelling of 689693331 in words is "six hundred eighty-nine million, six hundred ninety-three thousand, three hundred thirty-one".