321654064 has 20 divisors (see below), whose sum is σ = 627179104. Its totient is φ = 159801408.

The previous prime is 321654049. The next prime is 321654077. The reversal of 321654064 is 460456123.

It is a super-2 number, since 2×321654064² = 206922673775432192, which contains 22 as substring.

It is an unprimeable number.

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, 61512 + ... + 66535.

Almost surely, 2^321654064 is an apocalyptic number.

It is an amenable number.

321654064 is a deficient number, since it is larger than the sum of its proper divisors (305525040).

321654064 is a wasteful number, since it uses less digits than its factorization.

321654064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128212 (or 128206 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 321654064 is about 17934.7167248329. The cubic root of 321654064 is about 685.1668579615.

The spelling of 321654064 in words is "three hundred twenty-one million, six hundred fifty-four thousand, sixty-four".