2829845 has 8 divisors (see below), whose sum is σ = 3442776. Its totient is φ = 2232576.

The previous prime is 2829839. The next prime is 2829863. The reversal of 2829845 is 5489282.

2829845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1214404 + 1615441 = 1102^2 + 1271^2 .

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 2829845 - 2¹² = 2825749 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2829799 and 2829808.

It is a congruent number.

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, 3512 + ... + 4241.

It is an arithmetic number, because the mean of its divisors is an integer number (430347).

2^2829845 is an apocalyptic number.

It is an amenable number.

2829845 is a deficient number, since it is larger than the sum of its proper divisors (612931).

2829845 is an equidigital number, since it uses as much as digits as its factorization.

2829845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831.

The product of its digits is 46080, while the sum is 38.

The square root of 2829845 is about 1682.2143145271. The cubic root of 2829845 is about 141.4449835439. Note that the first 3 decimals are identical.

The spelling of 2829845 in words is "two million, eight hundred twenty-nine thousand, eight hundred forty-five".