1684484 has 6 divisors (see below), whose sum is σ = 2947854. Its totient is φ = 842240.

The previous prime is 1684481. The next prime is 1684489. The reversal of 1684484 is 4844861.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 640000 = 1022^2 + 800^2 .

It is not an unprimeable number, because it can be changed into a prime (1684481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210557 + ... + 210564.

It is an arithmetic number, because the mean of its divisors is an integer number (491309).

2^1684484 is an apocalyptic number.

It is an amenable number.

1684484 is a deficient number, since it is larger than the sum of its proper divisors (1263370).

1684484 is a wasteful number, since it uses less digits than its factorization.

1684484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421125 (or 421123 counting only the distinct ones).

The product of its digits is 24576, while the sum is 35.

The square root of 1684484 is about 1297.8767275824. The cubic root of 1684484 is about 118.9841091697.

The spelling of 1684484 in words is "one million, six hundred eighty-four thousand, four hundred eighty-four".