8209807398 has 36 divisors (see below), whose sum is σ = 19261478340. Its totient is φ = 2526093648.

The previous prime is 8209807369. The next prime is 8209807423. The reversal of 8209807398 is 8937089028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1346368 + ... + 1352451.

It is an arithmetic number, because the mean of its divisors is an integer number (535041065).

Almost surely, 2^8209807398 is an apocalyptic number.

8209807398 is an abundant number, since it is smaller than the sum of its proper divisors (11051670942).

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

8209807398 is a wasteful number, since it uses less digits than its factorization.

8209807398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698853 (or 2698837 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 8209807398 is about 90607.9874955845. The cubic root of 8209807398 is about 2017.3332943150. Note that the first 3 decimals are identical.

The spelling of 8209807398 in words is "eight billion, two hundred nine million, eight hundred seven thousand, three hundred ninety-eight".