654543047 has 4 divisors (see below), whose sum is σ = 654607296. Its totient is φ = 654478800.

The previous prime is 654543041. The next prime is 654543049. The reversal of 654543047 is 740345456.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 654543047 - 2²⁸ = 386107591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654543047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654543041) 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 3 ways as a sum of consecutive naturals, for example, 13079 + ... + 38472.

It is an arithmetic number, because the mean of its divisors is an integer number (163651824).

Almost surely, 2^654543047 is an apocalyptic number.

654543047 is a deficient number, since it is larger than the sum of its proper divisors (64249).

654543047 is a wasteful number, since it uses less digits than its factorization.

654543047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64248.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 654543047 is about 25584.0389110086. The cubic root of 654543047 is about 868.2525576067.

The spelling of 654543047 in words is "six hundred fifty-four million, five hundred forty-three thousand, forty-seven".