654664570 has 64 divisors (see below), whose sum is σ = 1423537920. Its totient is φ = 211756032.

The previous prime is 654664559. The next prime is 654664583. The reversal of 654664570 is 75466456.

It is a happy number.

654664570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367522 + ... + 369298.

It is an arithmetic number, because the mean of its divisors is an integer number (22242780).

Almost surely, 2^654664570 is an apocalyptic number.

654664570 is an abundant number, since it is smaller than the sum of its proper divisors (768873350).

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

654664570 is a wasteful number, since it uses less digits than its factorization.

654664570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087.

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 654664570 is about 25586.4137776282. The cubic root of 654664570 is about 868.3062877761.

The spelling of 654664570 in words is "six hundred fifty-four million, six hundred sixty-four thousand, five hundred seventy".