9121880 has 32 divisors (see below), whose sum is σ = 20744640. Its totient is φ = 3609600.

The previous prime is 9121859. The next prime is 9121897. The reversal of 9121880 is 881219.

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, 2705 + ... + 5055.

It is an arithmetic number, because the mean of its divisors is an integer number (648270).

Almost surely, 2^9121880 is an apocalyptic number.

It is an amenable number.

9121880 is an abundant number, since it is smaller than the sum of its proper divisors (11622760).

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

9121880 is a wasteful number, since it uses less digits than its factorization.

9121880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 9121880 is about 3020.2450231728. The cubic root of 9121880 is about 208.9431405958.

It can be divided in two parts, 9121 and 880, that added together give a palindrome (10001).

The spelling of 9121880 in words is "nine million, one hundred twenty-one thousand, eight hundred eighty".