654464321 has 4 divisors (see below), whose sum is σ = 747959232. Its totient is φ = 560969412.

The previous prime is 654464311. The next prime is 654464339. The reversal of 654464321 is 123464456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654464321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654464311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46747445 + ... + 46747458.

It is an arithmetic number, because the mean of its divisors is an integer number (186989808).

Almost surely, 2^654464321 is an apocalyptic number.

It is an amenable number.

654464321 is a deficient number, since it is larger than the sum of its proper divisors (93494911).

654464321 is an equidigital number, since it uses as much as digits as its factorization.

654464321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93494910.

The product of its digits is 69120, while the sum is 35.

The square root of 654464321 is about 25582.5002882830. The cubic root of 654464321 is about 868.2177461497.

The spelling of 654464321 in words is "six hundred fifty-four million, four hundred sixty-four thousand, three hundred twenty-one".