8121008 has 40 divisors (see below), whose sum is σ = 18570240. Its totient is φ = 3366720.

The previous prime is 8120953. The next prime is 8121011. The reversal of 8121008 is 8001218.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2303 + ... + 4641.

It is an arithmetic number, because the mean of its divisors is an integer number (464256).

Almost surely, 2^8121008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8121008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9285120).

8121008 is an abundant number, since it is smaller than the sum of its proper divisors (10449232).

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

8121008 is a wasteful number, since it uses less digits than its factorization.

8121008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 8121008 is about 2849.7382335927. The cubic root of 8121008 is about 201.0033579466.

The spelling of 8121008 in words is "eight million, one hundred twenty-one thousand, eight".