689285488 has 20 divisors (see below), whose sum is σ = 1336348000. Its totient is φ = 344421504.

The previous prime is 689285461. The next prime is 689285501. The reversal of 689285488 is 884582986.

It is a super-2 number, since 2×689285488² = 950228967934796288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13513 + ... + 39511.

It is an arithmetic number, because the mean of its divisors is an integer number (66817400).

Almost surely, 2^689285488 is an apocalyptic number.

It is an amenable number.

689285488 is a deficient number, since it is larger than the sum of its proper divisors (647062512).

689285488 is a wasteful number, since it uses less digits than its factorization.

689285488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27664 (or 27658 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 58.

The square root of 689285488 is about 26254.2470469065. The cubic root of 689285488 is about 883.3504711837.

The spelling of 689285488 in words is "six hundred eighty-nine million, two hundred eighty-five thousand, four hundred eighty-eight".