2808129 has 8 divisors (see below), whose sum is σ = 3757600. Its totient is φ = 1865376.

The previous prime is 2808119. The next prime is 2808149. The reversal of 2808129 is 9218082.

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

It is not a de Polignac number, because 2808129 - 2¹⁷ = 2677057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2808096 and 2808105.

It is not an unprimeable number, because it can be changed into a prime (2808119) 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, 604 + ... + 2445.

It is an arithmetic number, because the mean of its divisors is an integer number (469700).

2^2808129 is an apocalyptic number.

It is an amenable number.

2808129 is a deficient number, since it is larger than the sum of its proper divisors (949471).

2808129 is a wasteful number, since it uses less digits than its factorization.

2808129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2808129 is about 1675.7472959847. The cubic root of 2808129 is about 141.0822416445.

The spelling of 2808129 in words is "two million, eight hundred eight thousand, one hundred twenty-nine".