2129708 has 24 divisors (see below), whose sum is σ = 4445952. Its totient is φ = 872784.

The previous prime is 2129689. The next prime is 2129713. The reversal of 2129708 is 8079212.

It is a happy number.

2129708 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 1010 + ... + 2297.

It is an arithmetic number, because the mean of its divisors is an integer number (185248).

2^2129708 is an apocalyptic number.

2129708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2129708 is an abundant number, since it is smaller than the sum of its proper divisors (2316244).

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

2129708 is a wasteful number, since it uses less digits than its factorization.

2129708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341 (or 3339 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2129708 is about 1459.3519109523. The cubic root of 2129708 is about 128.6589553338.

The spelling of 2129708 in words is "two million, one hundred twenty-nine thousand, seven hundred eight".