1606984688 has 20 divisors (see below), whose sum is σ = 3115962768. Its totient is φ = 802865280.

The previous prime is 1606984681. The next prime is 1606984747. The reversal of 1606984688 is 8864896061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606984681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17693 + ... + 59388.

Almost surely, 2^1606984688 is an apocalyptic number.

It is an amenable number.

1606984688 is a deficient number, since it is larger than the sum of its proper divisors (1508978080).

1606984688 is a wasteful number, since it uses less digits than its factorization.

1606984688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78392 (or 78386 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 56.

The square root of 1606984688 is about 40087.2135225186. The cubic root of 1606984688 is about 1171.3065706660.

The spelling of 1606984688 in words is "one billion, six hundred six million, nine hundred eighty-four thousand, six hundred eighty-eight".