8287398 has 96 divisors (see below), whose sum is σ = 22441536. Its totient is φ = 2156544.

The previous prime is 8287373. The next prime is 8287403. The reversal of 8287398 is 8937828.

It is a super-2 number, since 2×8287398² = 137361931220808, which contains 22 as substring.

It is a Curzon number.

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, 113490 + ... + 113562.

It is an arithmetic number, because the mean of its divisors is an integer number (233766).

Almost surely, 2^8287398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8287398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11220768).

8287398 is an abundant number, since it is smaller than the sum of its proper divisors (14154138).

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

8287398 is a wasteful number, since it uses less digits than its factorization.

8287398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 155 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 8287398 is about 2878.7841183389. The cubic root of 8287398 is about 202.3668626456.

The spelling of 8287398 in words is "eight million, two hundred eighty-seven thousand, three hundred ninety-eight".