2820829 has 8 divisors (see below), whose sum is σ = 3108960. Its totient is φ = 2538000.

The previous prime is 2820821. The next prime is 2820833. The reversal of 2820829 is 9280282.

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 2820829 - 2³ = 2820821 is a prime.

It is a Duffinian number.

2820829 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2820829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820821) 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, 159 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (388620).

2^2820829 is an apocalyptic number.

It is an amenable number.

2820829 is a deficient number, since it is larger than the sum of its proper divisors (288131).

2820829 is a wasteful number, since it uses less digits than its factorization.

2820829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2820829 is about 1679.5323753950. The cubic root of 2820829 is about 141.2946072600.

The spelling of 2820829 in words is "two million, eight hundred twenty thousand, eight hundred twenty-nine".