4750221 has 8 divisors (see below), whose sum is σ = 7238464. Its totient is φ = 2714400.

The previous prime is 4750217. The next prime is 4750241. The reversal of 4750221 is 1220574.

4750221 is digitally balanced in base 4, 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 not a de Polignac number, because 4750221 - 2² = 4750217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 226201 = 4750221 / (4 + 7 + 5 + 0 + 2 + 2 + 1).

It is the 2180-th Hogben number.

It is a Duffinian number.

4750221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4750241) by changing a digit.

It is a nontrivial repunit in base 2179.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113080 + ... + 113121.

It is an arithmetic number, because the mean of its divisors is an integer number (904808).

Almost surely, 2^4750221 is an apocalyptic number.

It is an amenable number.

4750221 is a deficient number, since it is larger than the sum of its proper divisors (2488243).

4750221 is a wasteful number, since it uses less digits than its factorization.

4750221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226211.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 4750221 is about 2179.5001720578. The cubic root of 4750221 is about 168.1013773050.

Adding to 4750221 its reverse (1220574), we get a palindrome (5970795).

The spelling of 4750221 in words is "four million, seven hundred fifty thousand, two hundred twenty-one".