2863321 has 6 divisors (see below), whose sum is σ = 2901822. Its totient is φ = 2825280.

The previous prime is 2863313. The next prime is 2863331. The reversal of 2863321 is 1233682.

It can be written as a sum of positive squares in 3 ways, for example, as 1265625 + 1597696 = 1125^2 + 1264^2 .

It is not a de Polignac number, because 2863321 - 2³ = 2863313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2863331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11761 + ... + 12001.

It is an arithmetic number, because the mean of its divisors is an integer number (483637).

2^2863321 is an apocalyptic number.

It is an amenable number.

2863321 is a deficient number, since it is larger than the sum of its proper divisors (38501).

2863321 is an equidigital number, since it uses as much as digits as its factorization.

2863321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 350 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2863321 is about 1692.1350418923. The cubic root of 2863321 is about 142.0005455246. Note that the first 3 decimals are identical.

The spelling of 2863321 in words is "two million, eight hundred sixty-three thousand, three hundred twenty-one".