654564444 has 12 divisors (see below), whose sum is σ = 1527317064. Its totient is φ = 218188144.

The previous prime is 654564437. The next prime is 654564451. The reversal of 654564444 is 444465456.

654564444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (654564437) and next prime (654564451).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×654564444² = 856909222698058272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 654564396 and 654564405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27273507 + ... + 27273530.

It is an arithmetic number, because the mean of its divisors is an integer number (127276422).

Almost surely, 2^654564444 is an apocalyptic number.

It is an amenable number.

654564444 is an abundant number, since it is smaller than the sum of its proper divisors (872752620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654564444 is a wasteful number, since it uses less digits than its factorization.

654564444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54547044 (or 54547042 counting only the distinct ones).

The product of its digits is 921600, while the sum is 42.

The square root of 654564444 is about 25584.4570784686. The cubic root of 654564444 is about 868.2620185569.

The spelling of 654564444 in words is "six hundred fifty-four million, five hundred sixty-four thousand, four hundred forty-four".