1684888564 has 48 divisors (see below), whose sum is σ = 3275790336. Its totient is φ = 754675200.

The previous prime is 1684888561. The next prime is 1684888607. The reversal of 1684888564 is 4658884861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1684888499 and 1684888508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684888561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122037 + ... + 135139.

It is an arithmetic number, because the mean of its divisors is an integer number (68245632).

Almost surely, 2^1684888564 is an apocalyptic number.

It is an amenable number.

1684888564 is a deficient number, since it is larger than the sum of its proper divisors (1590901772).

1684888564 is a wasteful number, since it uses less digits than its factorization.

1684888564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13216 (or 13214 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 58.

The square root of 1684888564 is about 41047.3941194810. The cubic root of 1684888564 is about 1189.9363391314.

The spelling of 1684888564 in words is "one billion, six hundred eighty-four million, eight hundred eighty-eight thousand, five hundred sixty-four".