328811723 has 4 divisors (see below), whose sum is σ = 330648840. Its totient is φ = 326974608.

The previous prime is 328811719. The next prime is 328811729. The reversal of 328811723 is 327118823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 328811723 - 2² = 328811719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328811729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918290 + ... + 918647.

It is an arithmetic number, because the mean of its divisors is an integer number (82662210).

Almost surely, 2^328811723 is an apocalyptic number.

328811723 is a deficient number, since it is larger than the sum of its proper divisors (1837117).

328811723 is a wasteful number, since it uses less digits than its factorization.

328811723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837116.

The product of its digits is 16128, while the sum is 35.

The square root of 328811723 is about 18133.1663809716. The cubic root of 328811723 is about 690.2118812998.

The spelling of 328811723 in words is "three hundred twenty-eight million, eight hundred eleven thousand, seven hundred twenty-three".