689629132 has 12 divisors (see below), whose sum is σ = 1211441616. Its totient is φ = 343502960.

The previous prime is 689629103. The next prime is 689629151. The reversal of 689629132 is 231926986.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326719 + ... + 328822.

It is an arithmetic number, because the mean of its divisors is an integer number (100953468).

Almost surely, 2^689629132 is an apocalyptic number.

It is an amenable number.

689629132 is a deficient number, since it is larger than the sum of its proper divisors (521812484).

689629132 is a wasteful number, since it uses less digits than its factorization.

689629132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655808 (or 655806 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 689629132 is about 26260.7907725567. The cubic root of 689629132 is about 883.4972452283.

The spelling of 689629132 in words is "six hundred eighty-nine million, six hundred twenty-nine thousand, one hundred thirty-two".