654663072 has 96 divisors (see below), whose sum is σ = 2011976064. Its totient is φ = 182476800.

The previous prime is 654663059. The next prime is 654663077. The reversal of 654663072 is 270366456.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 654663072.

It is not an unprimeable number, because it can be changed into a prime (654663077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15672 + ... + 39432.

It is an arithmetic number, because the mean of its divisors is an integer number (20958084).

Almost surely, 2^654663072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654663072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005988032).

654663072 is an abundant number, since it is smaller than the sum of its proper divisors (1357312992).

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

654663072 is a wasteful number, since it uses less digits than its factorization.

654663072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23822 (or 23814 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 654663072 is about 25586.3845042632. The cubic root of 654663072 is about 868.3056254910.

The spelling of 654663072 in words is "six hundred fifty-four million, six hundred sixty-three thousand, seventy-two".