653890484 has 12 divisors (see below), whose sum is σ = 1232332164. Its totient is φ = 301795584.

The previous prime is 653890481. The next prime is 653890511. The reversal of 653890484 is 484098356.

It can be written as a sum of positive squares in 2 ways, for example, as 268632100 + 385258384 = 16390^2 + 19628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653890481) 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, 6287357 + ... + 6287460.

It is an arithmetic number, because the mean of its divisors is an integer number (102694347).

Almost surely, 2^653890484 is an apocalyptic number.

It is an amenable number.

653890484 is a deficient number, since it is larger than the sum of its proper divisors (578441680).

653890484 is a wasteful number, since it uses less digits than its factorization.

653890484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12574834 (or 12574832 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 653890484 is about 25571.2824082016. The cubic root of 653890484 is about 867.9639196567.

The spelling of 653890484 in words is "six hundred fifty-three million, eight hundred ninety thousand, four hundred eighty-four".