2129929 has 8 divisors (see below), whose sum is σ = 2185920. Its totient is φ = 2074800.

The previous prime is 2129903. The next prime is 2129951. The reversal of 2129929 is 9299212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2129929 - 2¹³ = 2121737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2129894 and 2129903.

It is not an unprimeable number, because it can be changed into a prime (2129329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9187 + ... + 9415.

It is an arithmetic number, because the mean of its divisors is an integer number (273240).

2^2129929 is an apocalyptic number.

It is an amenable number.

2129929 is a deficient number, since it is larger than the sum of its proper divisors (55991).

2129929 is a wasteful number, since it uses less digits than its factorization.

2129929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its digits is 5832, while the sum is 34.

The square root of 2129929 is about 1459.4276275307. The cubic root of 2129929 is about 128.6634054972.

The spelling of 2129929 in words is "two million, one hundred twenty-nine thousand, nine hundred twenty-nine".