2648821 has 8 divisors (see below), whose sum is σ = 3205440. Its totient is φ = 2136768.

The previous prime is 2648813. The next prime is 2648827. The reversal of 2648821 is 1288462.

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

It is a cyclic number.

It is not a de Polignac number, because 2648821 - 2³ = 2648813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2648827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11011 + ... + 11248.

It is an arithmetic number, because the mean of its divisors is an integer number (400680).

2^2648821 is an apocalyptic number.

It is an amenable number.

2648821 is a deficient number, since it is larger than the sum of its proper divisors (556619).

2648821 is a wasteful number, since it uses less digits than its factorization.

2648821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22283.

The product of its digits is 6144, while the sum is 31.

The square root of 2648821 is about 1627.5198923515. The cubic root of 2648821 is about 138.3622248972.

The spelling of 2648821 in words is "two million, six hundred forty-eight thousand, eight hundred twenty-one".