654641272 has 16 divisors (see below), whose sum is σ = 1280820240. Its totient is φ = 313089216.

The previous prime is 654641269. The next prime is 654641279. The reversal of 654641272 is 272146456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654641279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778733 + ... + 1779100.

It is an arithmetic number, because the mean of its divisors is an integer number (80051265).

Almost surely, 2^654641272 is an apocalyptic number.

It is an amenable number.

654641272 is a deficient number, since it is larger than the sum of its proper divisors (626178968).

654641272 is a wasteful number, since it uses less digits than its factorization.

654641272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557862 (or 3557858 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 654641272 is about 25585.9584928922. The cubic root of 654641272 is about 868.2959873155.

The spelling of 654641272 in words is "six hundred fifty-four million, six hundred forty-one thousand, two hundred seventy-two".