2805413 has 4 divisors (see below), whose sum is σ = 3021228. Its totient is φ = 2589600.

The previous prime is 2805403. The next prime is 2805443. The reversal of 2805413 is 3145082.

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 1044484 + 1760929 = 1022^2 + 1327^2 .

It is not a de Polignac number, because 2805413 - 2⁸ = 2805157 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 (2805403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107888 + ... + 107913.

It is an arithmetic number, because the mean of its divisors is an integer number (755307).

2^2805413 is an apocalyptic number.

It is an amenable number.

2805413 is a deficient number, since it is larger than the sum of its proper divisors (215815).

2805413 is a wasteful number, since it uses less digits than its factorization.

2805413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215814.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2805413 is about 1674.9367152224. The cubic root of 2805413 is about 141.0367424324.

The spelling of 2805413 in words is "two million, eight hundred five thousand, four hundred thirteen".