689968602 has 24 divisors (see below), whose sum is σ = 1495487136. Its totient is φ = 229904136.

The previous prime is 689968589. The next prime is 689968627. The reversal of 689968602 is 206869986.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59613 + ... + 70239.

It is an arithmetic number, because the mean of its divisors is an integer number (62311964).

Almost surely, 2^689968602 is an apocalyptic number.

689968602 is an abundant number, since it is smaller than the sum of its proper divisors (805518534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689968602 is a wasteful number, since it uses less digits than its factorization.

689968602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14242 (or 14239 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 689968602 is about 26267.2534156124. The cubic root of 689968602 is about 883.6421886466.

The spelling of 689968602 in words is "six hundred eighty-nine million, nine hundred sixty-eight thousand, six hundred two".