7448021 has 8 divisors (see below), whose sum is σ = 8882304. Its totient is φ = 6106320.

The previous prime is 7448017. The next prime is 7448027. The reversal of 7448021 is 1208447.

7448021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7448021 - 2² = 7448017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7448027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22970 + ... + 23291.

It is an arithmetic number, because the mean of its divisors is an integer number (1110288).

Almost surely, 2^7448021 is an apocalyptic number.

It is an amenable number.

7448021 is a deficient number, since it is larger than the sum of its proper divisors (1434283).

7448021 is a wasteful number, since it uses less digits than its factorization.

7448021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46291.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 7448021 is about 2729.1062639626. The cubic root of 7448021 is about 195.2901313391.

The spelling of 7448021 in words is "seven million, four hundred forty-eight thousand, twenty-one".