2803345 has 4 divisors (see below), whose sum is σ = 3364020. Its totient is φ = 2242672.

The previous prime is 2803337. The next prime is 2803357. The reversal of 2803345 is 5433082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5433082 = 2 ⋅2716541.

It can be written as a sum of positive squares in 2 ways, for example, as 633616 + 2169729 = 796^2 + 1473^2 .

It is a cyclic number.

It is not a de Polignac number, because 2803345 - 2³ = 2803337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280330 + ... + 280339.

It is an arithmetic number, because the mean of its divisors is an integer number (841005).

2^2803345 is an apocalyptic number.

It is an amenable number.

2803345 is a deficient number, since it is larger than the sum of its proper divisors (560675).

2803345 is an equidigital number, since it uses as much as digits as its factorization.

2803345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560674.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2803345 is about 1674.3192646565. The cubic root of 2803345 is about 141.0020790063.

The spelling of 2803345 in words is "two million, eight hundred three thousand, three hundred forty-five".