4468921 has 6 divisors (see below), whose sum is σ = 4547166. Its totient is φ = 4392000.

The previous prime is 4468903. The next prime is 4468927. The reversal of 4468921 is 1298644.

It can be written as a sum of positive squares in 3 ways, for example, as 1357225 + 3111696 = 1165^2 + 1764^2 .

It is not a de Polignac number, because 4468921 - 2⁵ = 4468889 is a prime.

It is a Duffinian number.

4468921 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4468927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3121 + ... + 4321.

It is an arithmetic number, because the mean of its divisors is an integer number (757861).

Almost surely, 2^4468921 is an apocalyptic number.

It is an amenable number.

4468921 is a deficient number, since it is larger than the sum of its proper divisors (78245).

4468921 is an equidigital number, since it uses as much as digits as its factorization.

4468921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1262 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 4468921 is about 2113.9822610419. The cubic root of 4468921 is about 164.7154077949.

The spelling of 4468921 in words is "four million, four hundred sixty-eight thousand, nine hundred twenty-one".