689937896 has 16 divisors (see below), whose sum is σ = 1294433700. Its totient is φ = 344755584.

The previous prime is 689937893. The next prime is 689937901. The reversal of 689937896 is 698739986.

It can be written as a sum of positive squares in 2 ways, for example, as 605848996 + 84088900 = 24614^2 + 9170^2 .

It is not an unprimeable number, because it can be changed into a prime (689937893) 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, 12485 + ... + 39188.

Almost surely, 2^689937896 is an apocalyptic number.

It is an amenable number.

689937896 is a deficient number, since it is larger than the sum of its proper divisors (604495804).

689937896 is a wasteful number, since it uses less digits than its factorization.

689937896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53348 (or 53344 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 65.

The square root of 689937896 is about 26266.6689170896. The cubic root of 689937896 is about 883.6290800696.

The spelling of 689937896 in words is "six hundred eighty-nine million, nine hundred thirty-seven thousand, eight hundred ninety-six".