523320463 has 4 divisors (see below), whose sum is σ = 533194488. Its totient is φ = 513446440.

The previous prime is 523320461. The next prime is 523320509. The reversal of 523320463 is 364023325.

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 523320463 - 2¹ = 523320461 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 (523320461) 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, 4936933 + ... + 4937038.

It is an arithmetic number, because the mean of its divisors is an integer number (133298622).

Almost surely, 2^523320463 is an apocalyptic number.

523320463 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

523320463 is a deficient number, since it is larger than the sum of its proper divisors (9874025).

523320463 is an equidigital number, since it uses as much as digits as its factorization.

523320463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874024.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 523320463 is about 22876.1986134060. The cubic root of 523320463 is about 805.8531458931.

Adding to 523320463 its reverse (364023325), we get a palindrome (887343788).

The spelling of 523320463 in words is "five hundred twenty-three million, three hundred twenty thousand, four hundred sixty-three".