689480500 has 24 divisors (see below), whose sum is σ = 1505826504. Its totient is φ = 275792000.

The previous prime is 689480489. The next prime is 689480513. The reversal of 689480500 is 5084986.

It can be written as a sum of positive squares in 4 ways, for example, as 1572516 + 687907984 = 1254^2 + 26228^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688981 + ... + 689980.

It is an arithmetic number, because the mean of its divisors is an integer number (62742771).

Almost surely, 2^689480500 is an apocalyptic number.

It is an amenable number.

689480500 is an abundant number, since it is smaller than the sum of its proper divisors (816346004).

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

689480500 is a wasteful number, since it uses less digits than its factorization.

689480500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378980 (or 1378968 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 689480500 is about 26257.9606976627. The cubic root of 689480500 is about 883.4337688893.

The spelling of 689480500 in words is "six hundred eighty-nine million, four hundred eighty thousand, five hundred".