689480492 has 12 divisors (see below), whose sum is σ = 1277566920. Its totient is φ = 324461376.

The previous prime is 689480489. The next prime is 689480513. The reversal of 689480492 is 294084986.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 689480492.

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, 5069642 + ... + 5069777.

It is an arithmetic number, because the mean of its divisors is an integer number (106463910).

Almost surely, 2^689480492 is an apocalyptic number.

It is an amenable number.

689480492 is a deficient number, since it is larger than the sum of its proper divisors (588086428).

689480492 is a wasteful number, since it uses less digits than its factorization.

689480492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10139440 (or 10139438 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 689480492 is about 26257.9605453280. The cubic root of 689480492 is about 883.4337654725.

The spelling of 689480492 in words is "six hundred eighty-nine million, four hundred eighty thousand, four hundred ninety-two".