654589481 has 12 divisors (see below), whose sum is σ = 820035972. Its totient is φ = 517916448.

The previous prime is 654589447. The next prime is 654589489. The reversal of 654589481 is 184985456.

It can be written as a sum of positive squares in 2 ways, for example, as 430189081 + 224400400 = 20741^2 + 14980^2 .

It is not a de Polignac number, because 654589481 - 2⁶ = 654589417 is a prime.

It is a super-2 number, since 2×654589481² = 856974777271698722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (654589489) 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 11 ways as a sum of consecutive naturals, for example, 513170 + ... + 514443.

It is an arithmetic number, because the mean of its divisors is an integer number (68336331).

Almost surely, 2^654589481 is an apocalyptic number.

It is an amenable number.

654589481 is a deficient number, since it is larger than the sum of its proper divisors (165446491).

654589481 is a wasteful number, since it uses less digits than its factorization.

654589481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027640 (or 1027633 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 50.

The square root of 654589481 is about 25584.9463747728. The cubic root of 654589481 is about 868.2730887167.

The spelling of 654589481 in words is "six hundred fifty-four million, five hundred eighty-nine thousand, four hundred eighty-one".