2129798 has 16 divisors (see below), whose sum is σ = 3516480. Its totient is φ = 959400.

The previous prime is 2129797. The next prime is 2129807. The reversal of 2129798 is 8979212.

2129798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (219780).

2^2129798 is an apocalyptic number.

2129798 is a deficient number, since it is larger than the sum of its proper divisors (1386682).

2129798 is a wasteful number, since it uses less digits than its factorization.

2129798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its digits is 18144, while the sum is 38.

The square root of 2129798 is about 1459.3827462321. The cubic root of 2129798 is about 128.6607676547.

The spelling of 2129798 in words is "two million, one hundred twenty-nine thousand, seven hundred ninety-eight".