2646213 has 4 divisors (see below), whose sum is σ = 3528288. Its totient is φ = 1764140.

The previous prime is 2646211. The next prime is 2646227. The reversal of 2646213 is 3126462.

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 2646213 - 2¹ = 2646211 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646211) 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, 441033 + ... + 441038.

It is an arithmetic number, because the mean of its divisors is an integer number (882072).

2^2646213 is an apocalyptic number.

It is an amenable number.

2646213 is a deficient number, since it is larger than the sum of its proper divisors (882075).

2646213 is an equidigital number, since it uses as much as digits as its factorization.

2646213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882074.

The product of its digits is 1728, while the sum is 24.

The square root of 2646213 is about 1626.7184759509. The cubic root of 2646213 is about 138.3168000111.

Subtracting 2646213 from its reverse (3126462), we obtain a square (480249 = 693²).

The spelling of 2646213 in words is "two million, six hundred forty-six thousand, two hundred thirteen".