654404443 has 16 divisors (see below), whose sum is σ = 863875584. Its totient is φ = 479928960.

The previous prime is 654404431. The next prime is 654404501. The reversal of 654404443 is 344404456.

654404443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 654404443 - 2⁹ = 654403931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 654404399 and 654404408.

It is not an unprimeable number, because it can be changed into a prime (654404243) 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, 248655 + ... + 251272.

It is an arithmetic number, because the mean of its divisors is an integer number (53992224).

Almost surely, 2^654404443 is an apocalyptic number.

654404443 is a deficient number, since it is larger than the sum of its proper divisors (209471141).

654404443 is a wasteful number, since it uses less digits than its factorization.

654404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499962.

The product of its (nonzero) digits is 92160, while the sum is 34.

The square root of 654404443 is about 25581.3299693351. The cubic root of 654404443 is about 868.1912671265.

Adding to 654404443 its reverse (344404456), we get a palindrome (998808899).

The spelling of 654404443 in words is "six hundred fifty-four million, four hundred four thousand, four hundred forty-three".