523438331 has 4 divisors (see below), whose sum is σ = 563702832. Its totient is φ = 483173832.

The previous prime is 523438319. The next prime is 523438339. The reversal of 523438331 is 133834325.

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 523438331 - 2¹⁴ = 523421947 is a prime.

It is a super-2 number, since 2×523438331² = 547975372720131122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523438339) 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, 20132231 + ... + 20132256.

It is an arithmetic number, because the mean of its divisors is an integer number (140925708).

Almost surely, 2^523438331 is an apocalyptic number.

523438331 is a deficient number, since it is larger than the sum of its proper divisors (40264501).

523438331 is a wasteful number, since it uses less digits than its factorization.

523438331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40264500.

The product of its digits is 25920, while the sum is 32.

The square root of 523438331 is about 22878.7746830987. The cubic root of 523438331 is about 805.9136423926.

The spelling of 523438331 in words is "five hundred twenty-three million, four hundred thirty-eight thousand, three hundred thirty-one".