654541823 has 4 divisors (see below), whose sum is σ = 704891208. Its totient is φ = 604192440.

The previous prime is 654541813. The next prime is 654541847. The reversal of 654541823 is 328145456.

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 654541823 - 2⁴ = 654541807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654541813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25174673 + ... + 25174698.

It is an arithmetic number, because the mean of its divisors is an integer number (176222802).

Almost surely, 2^654541823 is an apocalyptic number.

654541823 is a deficient number, since it is larger than the sum of its proper divisors (50349385).

654541823 is a wasteful number, since it uses less digits than its factorization.

654541823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50349384.

The product of its digits is 115200, while the sum is 38.

The square root of 654541823 is about 25584.0149898330. The cubic root of 654541823 is about 868.2520163936.

The spelling of 654541823 in words is "six hundred fifty-four million, five hundred forty-one thousand, eight hundred twenty-three".