328769423 has 4 divisors (see below), whose sum is σ = 328805688. Its totient is φ = 328733160.

The previous prime is 328769411. The next prime is 328769453. The reversal of 328769423 is 324967823.

It is a Cunningham number, because it is equal to 18132²-1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 328769423 - 2¹⁰ = 328768399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328769453) 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 3 ways as a sum of consecutive naturals, for example, 9065 + ... + 27197.

It is an arithmetic number, because the mean of its divisors is an integer number (82201422).

Almost surely, 2^328769423 is an apocalyptic number.

328769423 is a deficient number, since it is larger than the sum of its proper divisors (36265).

328769423 is a wasteful number, since it uses less digits than its factorization.

328769423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36264.

The product of its digits is 435456, while the sum is 44.

The square root of 328769423 is about 18131.9999724244. Note that the first 4 decimals coincide. The cubic root of 328769423 is about 690.1822825836.

The spelling of 328769423 in words is "three hundred twenty-eight million, seven hundred sixty-nine thousand, four hundred twenty-three".