2026321 has 4 divisors (see below), whose sum is σ = 2210544. Its totient is φ = 1842100.

The previous prime is 2026309. The next prime is 2026327. The reversal of 2026321 is 1236202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2026321 - 2¹⁵ = 1993553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2026295 and 2026304.

It is not an unprimeable number, because it can be changed into a prime (2026327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92095 + ... + 92116.

It is an arithmetic number, because the mean of its divisors is an integer number (552636).

2^2026321 is an apocalyptic number.

It is an amenable number.

2026321 is a deficient number, since it is larger than the sum of its proper divisors (184223).

2026321 is a wasteful number, since it uses less digits than its factorization.

2026321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184222.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2026321 is about 1423.4890234912. The cubic root of 2026321 is about 126.5424042981.

The spelling of 2026321 in words is "two million, twenty-six thousand, three hundred twenty-one".