654611443 has 4 divisors (see below), whose sum is σ = 658531440. Its totient is φ = 650691448.

The previous prime is 654611429. The next prime is 654611479. The reversal of 654611443 is 344116456.

654611443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654611443 - 2¹³ = 654603251 is a prime.

It is a super-2 number, since 2×654611443² = 857032282613084498, 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 = 654611399 and 654611408.

It is not an unprimeable number, because it can be changed into a prime (654611483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959748 + ... + 1960081.

It is an arithmetic number, because the mean of its divisors is an integer number (164632860).

Almost surely, 2^654611443 is an apocalyptic number.

654611443 is a deficient number, since it is larger than the sum of its proper divisors (3919997).

654611443 is a wasteful number, since it uses less digits than its factorization.

654611443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919996.

The product of its digits is 34560, while the sum is 34.

The square root of 654611443 is about 25585.3755688675. The cubic root of 654611443 is about 868.2827990267.

Adding to 654611443 its reverse (344116456), we get a palindrome (998727899).

The spelling of 654611443 in words is "six hundred fifty-four million, six hundred eleven thousand, four hundred forty-three".