523932321 has 16 divisors (see below), whose sum is σ = 782682048. Its totient is φ = 308952000.

The previous prime is 523932319. The next prime is 523932347. The reversal of 523932321 is 123239325.

It is not a de Polignac number, because 523932321 - 2¹ = 523932319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523932301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213330 + ... + 215771.

It is an arithmetic number, because the mean of its divisors is an integer number (48917628).

Almost surely, 2^523932321 is an apocalyptic number.

It is an amenable number.

523932321 is a deficient number, since it is larger than the sum of its proper divisors (258749727).

523932321 is a wasteful number, since it uses less digits than its factorization.

523932321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429152.

The product of its digits is 9720, while the sum is 30.

The square root of 523932321 is about 22889.5679513616. The cubic root of 523932321 is about 806.1670871531.

The spelling of 523932321 in words is "five hundred twenty-three million, nine hundred thirty-two thousand, three hundred twenty-one".