654644231 has 8 divisors (see below), whose sum is σ = 677524800. Its totient is φ = 631784160.

The previous prime is 654644209. The next prime is 654644257. The reversal of 654644231 is 132446456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 654644231 - 2¹⁸ = 654382087 is a prime.

It is a super-2 number, since 2×654644231² = 857118138363162722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654644191 and 654644200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654644261) 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 7 ways as a sum of consecutive naturals, for example, 90146 + ... + 97136.

It is an arithmetic number, because the mean of its divisors is an integer number (84690600).

Almost surely, 2^654644231 is an apocalyptic number.

654644231 is a deficient number, since it is larger than the sum of its proper divisors (22880569).

654644231 is a wasteful number, since it uses less digits than its factorization.

654644231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10249.

The product of its digits is 69120, while the sum is 35.

The square root of 654644231 is about 25586.0163175122. The cubic root of 654644231 is about 868.2972955556.

The spelling of 654644231 in words is "six hundred fifty-four million, six hundred forty-four thousand, two hundred thirty-one".