654561323 has 16 divisors (see below), whose sum is σ = 715266720. Its totient is φ = 595375104.

The previous prime is 654561317. The next prime is 654561331. The reversal of 654561323 is 323165456.

It is a cyclic number.

It is not a de Polignac number, because 654561323 - 2⁴ = 654561307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654561823) 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 15 ways as a sum of consecutive naturals, for example, 704123 + ... + 705051.

It is an arithmetic number, because the mean of its divisors is an integer number (44704170).

Almost surely, 2^654561323 is an apocalyptic number.

654561323 is a deficient number, since it is larger than the sum of its proper divisors (60705397).

654561323 is a wasteful number, since it uses less digits than its factorization.

654561323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its digits is 64800, while the sum is 35.

The square root of 654561323 is about 25584.3960843323. The cubic root of 654561323 is about 868.2606385807.

The spelling of 654561323 in words is "six hundred fifty-four million, five hundred sixty-one thousand, three hundred twenty-three".