8121960 has 192 divisors, whose sum is σ = 33022080. Its totient is φ = 1681920.

The previous prime is 8121959. The next prime is 8121973. The reversal of 8121960 is 691218.

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, 27574 + ... + 27866.

It is an arithmetic number, because the mean of its divisors is an integer number (171990).

Almost surely, 2^8121960 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 8121960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16511040).

8121960 is an abundant number, since it is smaller than the sum of its proper divisors (24900120).

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

8121960 is a wasteful number, since it uses less digits than its factorization.

8121960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 8121960 is about 2849.9052615833. The cubic root of 8121960 is about 201.0112119683.

It can be divided in two parts, 812 and 1960, that added together give a palindrome (2772).

The spelling of 8121960 in words is "eight million, one hundred twenty-one thousand, nine hundred sixty".