2922805 has 4 divisors (see below), whose sum is σ = 3507372. Its totient is φ = 2338240.

The previous prime is 2922797. The next prime is 2922809. The reversal of 2922805 is 5082292.

2922805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1387684 + 1535121 = 1178^2 + 1239^2 .

It is not a de Polignac number, because 2922805 - 2³ = 2922797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2922809) 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 3 ways as a sum of consecutive naturals, for example, 292276 + ... + 292285.

It is an arithmetic number, because the mean of its divisors is an integer number (876843).

2^2922805 is an apocalyptic number.

It is an amenable number.

2922805 is a deficient number, since it is larger than the sum of its proper divisors (584567).

2922805 is an equidigital number, since it uses as much as digits as its factorization.

2922805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584566.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2922805 is about 1709.6213030961. The cubic root of 2922805 is about 142.9771427434.

The spelling of 2922805 in words is "two million, nine hundred twenty-two thousand, eight hundred five".