523398853 has 4 divisors (see below), whose sum is σ = 532270080. Its totient is φ = 514527628.

The previous prime is 523398847. The next prime is 523398857. The reversal of 523398853 is 358893325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523398853 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 (523398857) 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, 4435525 + ... + 4435642.

It is an arithmetic number, because the mean of its divisors is an integer number (133067520).

Almost surely, 2^523398853 is an apocalyptic number.

It is an amenable number.

523398853 is a deficient number, since it is larger than the sum of its proper divisors (8871227).

523398853 is an equidigital number, since it uses as much as digits as its factorization.

523398853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8871226.

The product of its digits is 777600, while the sum is 46.

The square root of 523398853 is about 22877.9119020946. The cubic root of 523398853 is about 805.8933810700.

The spelling of 523398853 in words is "five hundred twenty-three million, three hundred ninety-eight thousand, eight hundred fifty-three".