2955805 has 4 divisors (see below), whose sum is σ = 3546972. Its totient is φ = 2364640.

The previous prime is 2955803. The next prime is 2955817. The reversal of 2955805 is 5085592.

2955805 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 1425636 + 1530169 = 1194^2 + 1237^2 .

It is not a de Polignac number, because 2955805 - 2¹ = 2955803 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2955803) 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, 295576 + ... + 295585.

It is an arithmetic number, because the mean of its divisors is an integer number (886743).

2^2955805 is an apocalyptic number.

It is an amenable number.

2955805 is a deficient number, since it is larger than the sum of its proper divisors (591167).

2955805 is an equidigital number, since it uses as much as digits as its factorization.

2955805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591166.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 2955805 is about 1719.2454740380. The cubic root of 2955805 is about 143.5132258446.

The spelling of 2955805 in words is "two million, nine hundred fifty-five thousand, eight hundred five".