8299640 has 16 divisors (see below), whose sum is σ = 18674280. Its totient is φ = 3319840.

The previous prime is 8299639. The next prime is 8299649. The reversal of 8299640 is 469928.

It is a junction number, because it is equal to n+sod(n) for n = 8299594 and 8299603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8299649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103706 + ... + 103785.

Almost surely, 2^8299640 is an apocalyptic number.

It is an amenable number.

8299640 is an abundant number, since it is smaller than the sum of its proper divisors (10374640).

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

8299640 is a wasteful number, since it uses less digits than its factorization.

8299640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207502 (or 207498 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 8299640 is about 2880.9095785880. The cubic root of 8299640 is about 202.4664578900.

The spelling of 8299640 in words is "eight million, two hundred ninety-nine thousand, six hundred forty".