523163963 has 4 divisors (see below), whose sum is σ = 597901680. Its totient is φ = 448426248.

The previous prime is 523163959. The next prime is 523163969. The reversal of 523163963 is 369361325.

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 523163963 - 2² = 523163959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523163969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37368848 + ... + 37368861.

It is an arithmetic number, because the mean of its divisors is an integer number (149475420).

Almost surely, 2^523163963 is an apocalyptic number.

523163963 is a deficient number, since it is larger than the sum of its proper divisors (74737717).

523163963 is an equidigital number, since it uses as much as digits as its factorization.

523163963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74737716.

The product of its digits is 87480, while the sum is 38.

The square root of 523163963 is about 22872.7777718405. Note that the first 5 decimals coincide. The cubic root of 523163963 is about 805.7728072351.

The spelling of 523163963 in words is "five hundred twenty-three million, one hundred sixty-three thousand, nine hundred sixty-three".