2803281 has 8 divisors (see below), whose sum is σ = 4025280. Its totient is φ = 1725072.

The previous prime is 2803259. The next prime is 2803291. The reversal of 2803281 is 1823082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2803281 - 2¹⁰ = 2802257 is a prime.

It is a super-2 number, since 2×2803281² = 15716768729922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2803201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35901 + ... + 35978.

It is an arithmetic number, because the mean of its divisors is an integer number (503160).

2^2803281 is an apocalyptic number.

It is an amenable number.

2803281 is a deficient number, since it is larger than the sum of its proper divisors (1221999).

2803281 is a wasteful number, since it uses less digits than its factorization.

2803281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71895.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2803281 is about 1674.3001523024. The cubic root of 2803281 is about 141.0010059784.

The spelling of 2803281 in words is "two million, eight hundred three thousand, two hundred eighty-one".