654404441 has 8 divisors (see below), whose sum is σ = 718797120. Its totient is φ = 593006832.

The previous prime is 654404431. The next prime is 654404501. The reversal of 654404441 is 144404456.

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 654404441 - 2¹⁸ = 654142297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654404398 and 654404407.

It is not an unprimeable number, because it can be changed into a prime (654404431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748310 + ... + 749183.

It is an arithmetic number, because the mean of its divisors is an integer number (89849640).

Almost surely, 2^654404441 is an apocalyptic number.

It is an amenable number.

654404441 is a deficient number, since it is larger than the sum of its proper divisors (64392679).

654404441 is a wasteful number, since it uses less digits than its factorization.

654404441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497535.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 654404441 is about 25581.3299302440. The cubic root of 654404441 is about 868.1912662421.

Adding to 654404441 its reverse (144404456), we get a palindrome (798808897).

The spelling of 654404441 in words is "six hundred fifty-four million, four hundred four thousand, four hundred forty-one".