321606923 has 8 divisors (see below), whose sum is σ = 360326640. Its totient is φ = 284467680.

The previous prime is 321606899. The next prime is 321606937. The reversal of 321606923 is 329606123.

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

It is a cyclic number.

It is not a de Polignac number, because 321606923 - 2⁸ = 321606667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321606923.

It is not an unprimeable number, because it can be changed into a prime (321605923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394688 + ... + 395501.

It is an arithmetic number, because the mean of its divisors is an integer number (45040830).

Almost surely, 2^321606923 is an apocalyptic number.

321606923 is a deficient number, since it is larger than the sum of its proper divisors (38719717).

321606923 is a wasteful number, since it uses less digits than its factorization.

321606923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790237.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 321606923 is about 17933.4024379090. The cubic root of 321606923 is about 685.1333840812.

The spelling of 321606923 in words is "three hundred twenty-one million, six hundred six thousand, nine hundred twenty-three".