8219609398 has 96 divisors (see below), whose sum is σ = 17053327872. Its totient is φ = 2883628800.

The previous prime is 8219609381. The next prime is 8219609407. The reversal of 8219609398 is 8939069128.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1063215 + ... + 1070917.

It is an arithmetic number, because the mean of its divisors is an integer number (177638832).

Almost surely, 2^8219609398 is an apocalyptic number.

8219609398 is an abundant number, since it is smaller than the sum of its proper divisors (8833718474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8219609398 is a wasteful number, since it uses less digits than its factorization.

8219609398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790 (or 7777 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 55.

The square root of 8219609398 is about 90662.0615141747. The cubic root of 8219609398 is about 2018.1358318820.

The spelling of 8219609398 in words is "eight billion, two hundred nineteen million, six hundred nine thousand, three hundred ninety-eight".