2828709 has 16 divisors (see below), whose sum is σ = 4513600. Its totient is φ = 1740528.

The previous prime is 2828641. The next prime is 2828717. The reversal of 2828709 is 9078282.

2828709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2828709 - 2⁸ = 2828453 is a prime.

It is an Ulam number.

2828709 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2828779) 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 15 ways as a sum of consecutive naturals, for example, 3679 + ... + 4380.

It is an arithmetic number, because the mean of its divisors is an integer number (282100).

2^2828709 is an apocalyptic number.

It is an amenable number.

2828709 is a deficient number, since it is larger than the sum of its proper divisors (1684891).

2828709 is a wasteful number, since it uses less digits than its factorization.

2828709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081 (or 8075 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2828709 is about 1681.8766304340. The cubic root of 2828709 is about 141.4260540022.

The spelling of 2828709 in words is "two million, eight hundred twenty-eight thousand, seven hundred nine".