2643215 has 8 divisors (see below), whose sum is σ = 3274368. Its totient is φ = 2046240.

The previous prime is 2643209. The next prime is 2643227. The reversal of 2643215 is 5123462.

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

It is not a de Polignac number, because 2643215 - 2²⁰ = 1594639 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6⁷ + 4⁹ + 3⁶ + 2²¹ + 1 + 5⁵ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8372 + ... + 8681.

It is an arithmetic number, because the mean of its divisors is an integer number (409296).

2^2643215 is an apocalyptic number.

2643215 is a deficient number, since it is larger than the sum of its proper divisors (631153).

2643215 is a wasteful number, since it uses less digits than its factorization.

2643215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17089.

The product of its digits is 1440, while the sum is 23.

The square root of 2643215 is about 1625.7967277615. The cubic root of 2643215 is about 138.2645454036.

Adding to 2643215 its reverse (5123462), we get a palindrome (7766677).

The spelling of 2643215 in words is "two million, six hundred forty-three thousand, two hundred fifteen".