654233321 has 32 divisors (see below), whose sum is σ = 832094208. Its totient is φ = 501177600.

The previous prime is 654233311. The next prime is 654233329. The reversal of 654233321 is 123332456.

It is not a de Polignac number, because 654233321 - 2²⁶ = 587124457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654233329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412496 + ... + 414078.

It is an arithmetic number, because the mean of its divisors is an integer number (26002944).

Almost surely, 2^654233321 is an apocalyptic number.

It is an amenable number.

654233321 is a deficient number, since it is larger than the sum of its proper divisors (177860887).

654233321 is a wasteful number, since it uses less digits than its factorization.

654233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781.

The product of its digits is 12960, while the sum is 29.

The square root of 654233321 is about 25577.9850848342. The cubic root of 654233321 is about 868.1155852964.

Adding to 654233321 its reverse (123332456), we get a palindrome (777565777).

The spelling of 654233321 in words is "six hundred fifty-four million, two hundred thirty-three thousand, three hundred twenty-one".