2643361 has 4 divisors (see below), whose sum is σ = 3020992. Its totient is φ = 2265732.

The previous prime is 2643353. The next prime is 2643383. The reversal of 2643361 is 1633462.

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 not a de Polignac number, because 2643361 - 2³ = 2643353 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6² + 4¹⁰ + 3⁴ + 3¹³ + 6³ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643331) 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, 188805 + ... + 188818.

It is an arithmetic number, because the mean of its divisors is an integer number (755248).

2^2643361 is an apocalyptic number.

It is an amenable number.

2643361 is a deficient number, since it is larger than the sum of its proper divisors (377631).

2643361 is an equidigital number, since it uses as much as digits as its factorization.

2643361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377630.

The product of its digits is 2592, while the sum is 25.

The square root of 2643361 is about 1625.8416282037. The cubic root of 2643361 is about 138.2670910727.

The spelling of 2643361 in words is "two million, six hundred forty-three thousand, three hundred sixty-one".