4648821 has 8 divisors (see below), whose sum is σ = 6244224. Its totient is φ = 3076320.

The previous prime is 4648811. The next prime is 4648843. The reversal of 4648821 is 1288464.

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

It is not a de Polignac number, because 4648821 - 2⁶ = 4648757 is a prime.

It is a super-2 number, since 2×4648821² = 43223073380082, which contains 22 as substring.

It is a Curzon number.

4648821 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4648801) 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, 5245 + ... + 6066.

It is an arithmetic number, because the mean of its divisors is an integer number (780528).

Almost surely, 2^4648821 is an apocalyptic number.

It is an amenable number.

4648821 is a deficient number, since it is larger than the sum of its proper divisors (1595403).

4648821 is a wasteful number, since it uses less digits than its factorization.

4648821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11451.

The product of its digits is 12288, while the sum is 33.

The square root of 4648821 is about 2156.1124738751. The cubic root of 4648821 is about 166.8966456232.

The spelling of 4648821 in words is "four million, six hundred forty-eight thousand, eight hundred twenty-one".