689629675 has 18 divisors (see below), whose sum is σ = 994757388. Its totient is φ = 472888080.

The previous prime is 689629669. The next prime is 689629679. The reversal of 689629675 is 576926986.

It is not a de Polignac number, because 689629675 - 2²¹ = 687532523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689629679) 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 17 ways as a sum of consecutive naturals, for example, 280257 + ... + 282706.

Almost surely, 2^689629675 is an apocalyptic number.

689629675 is a deficient number, since it is larger than the sum of its proper divisors (305127713).

689629675 is a wasteful number, since it uses less digits than its factorization.

689629675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562987 (or 562975 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The square root of 689629675 is about 26260.8011111619. The cubic root of 689629675 is about 883.4974771108.

The spelling of 689629675 in words is "six hundred eighty-nine million, six hundred twenty-nine thousand, six hundred seventy-five".