393064321 has 8 divisors (see below), whose sum is σ = 426533184. Its totient is φ = 360057360.

The previous prime is 393064303. The next prime is 393064349. The reversal of 393064321 is 123460393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 393064321 - 2¹¹ = 393062273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393064351) 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 7 ways as a sum of consecutive naturals, for example, 113701 + ... + 117106.

It is an arithmetic number, because the mean of its divisors is an integer number (53316648).

Almost surely, 2^393064321 is an apocalyptic number.

It is an amenable number.

393064321 is a deficient number, since it is larger than the sum of its proper divisors (33468863).

393064321 is a wasteful number, since it uses less digits than its factorization.

393064321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230951.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 393064321 is about 19825.8498178514. The cubic root of 393064321 is about 732.5229032975.

The spelling of 393064321 in words is "three hundred ninety-three million, sixty-four thousand, three hundred twenty-one".