654381443 has 8 divisors (see below), whose sum is σ = 671143200. Its totient is φ = 637657920.

The previous prime is 654381389. The next prime is 654381461. The reversal of 654381443 is 344183456.

It is a happy number.

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 654381443 - 2¹⁸ = 654119299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654381397 and 654381406.

It is not an unprimeable number, because it can be changed into a prime (654381473) 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, 26858 + ... + 45056.

It is an arithmetic number, because the mean of its divisors is an integer number (83892900).

Almost surely, 2^654381443 is an apocalyptic number.

654381443 is a deficient number, since it is larger than the sum of its proper divisors (16761757).

654381443 is a wasteful number, since it uses less digits than its factorization.

654381443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19117.

The product of its digits is 138240, while the sum is 38.

The square root of 654381443 is about 25580.8804187815. The cubic root of 654381443 is about 868.1810957239.

The spelling of 654381443 in words is "six hundred fifty-four million, three hundred eighty-one thousand, four hundred forty-three".