8398506911 has 4 divisors (see below), whose sum is σ = 8398711800. Its totient is φ = 8398302024.

The previous prime is 8398506869. The next prime is 8398506913. The reversal of 8398506911 is 1196058938.

It is a happy number.

8398506911 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1196058938 = 2 ⋅598029469.

It is a cyclic number.

It is not a de Polignac number, because 8398506911 - 2²² = 8394312607 is a prime.

It is a super-2 number, since 2×8398506911² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8398506911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398506913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17456 + ... + 130773.

It is an arithmetic number, because the mean of its divisors is an integer number (2099677950).

Almost surely, 2^8398506911 is an apocalyptic number.

8398506911 is a deficient number, since it is larger than the sum of its proper divisors (204889).

8398506911 is a wasteful number, since it uses less digits than its factorization.

8398506911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204888.

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 8398506911 is about 91643.3680688352. The cubic root of 8398506911 is about 2032.6722644119.

The spelling of 8398506911 in words is "eight billion, three hundred ninety-eight million, five hundred six thousand, nine hundred eleven".