8398539263 has 18 divisors (see below), whose sum is σ = 8900149176. Its totient is φ = 7910208768.

The previous prime is 8398539199. The next prime is 8398539269. The reversal of 8398539263 is 3629358938.

It is not a de Polignac number, because 8398539263 - 2⁶ = 8398539199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8398539199 and 8398539208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398539269) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 42632081 + ... + 42632277.

It is an arithmetic number, because the mean of its divisors is an integer number (494452732).

Almost surely, 2^8398539263 is an apocalyptic number.

8398539263 is a deficient number, since it is larger than the sum of its proper divisors (501609913).

8398539263 is an frugal number, since it uses more digits than its factorization.

8398539263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 317 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 56.

The square root of 8398539263 is about 91643.5445789828. The cubic root of 8398539263 is about 2032.6748744365.

The spelling of 8398539263 in words is "eight billion, three hundred ninety-eight million, five hundred thirty-nine thousand, two hundred sixty-three".