48443221 has 4 divisors (see below), whose sum is σ = 50549472. Its totient is φ = 46336972.

The previous prime is 48443209. The next prime is 48443231. The reversal of 48443221 is 12234484.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48443221 - 2⁷ = 48443093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48443221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48443201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053091 + ... + 1053136.

It is an arithmetic number, because the mean of its divisors is an integer number (12637368).

Almost surely, 2^48443221 is an apocalyptic number.

It is an amenable number.

48443221 is a deficient number, since it is larger than the sum of its proper divisors (2106251).

48443221 is a wasteful number, since it uses less digits than its factorization.

48443221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106250.

The product of its digits is 6144, while the sum is 28.

The square root of 48443221 is about 6960.1164501752. The cubic root of 48443221 is about 364.5392848559.

The spelling of 48443221 in words is "forty-eight million, four hundred forty-three thousand, two hundred twenty-one".