8398650 has 96 divisors (see below), whose sum is σ = 23123520. Its totient is φ = 2004480.

The previous prime is 8398633. The next prime is 8398673. The reversal of 8398650 is 568938.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8398599 and 8398608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115014 + ... + 115086.

It is an arithmetic number, because the mean of its divisors is an integer number (240870).

Almost surely, 2^8398650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8398650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11561760).

8398650 is an abundant number, since it is smaller than the sum of its proper divisors (14724870).

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

8398650 is a wasteful number, since it uses less digits than its factorization.

8398650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 8398650 is about 2898.0424427534. The cubic root of 8398650 is about 203.2683808186.

The spelling of 8398650 in words is "eight million, three hundred ninety-eight thousand, six hundred fifty".