4784421 has 4 divisors (see below), whose sum is σ = 6379232. Its totient is φ = 3189612.

The previous prime is 4784419. The next prime is 4784431. The reversal of 4784421 is 1244874.

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 not a de Polignac number, because 4784421 - 2¹ = 4784419 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4784401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797401 + ... + 797406.

It is an arithmetic number, because the mean of its divisors is an integer number (1594808).

Almost surely, 2^4784421 is an apocalyptic number.

It is an amenable number.

4784421 is a deficient number, since it is larger than the sum of its proper divisors (1594811).

4784421 is a wasteful number, since it uses less digits than its factorization.

4784421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594810.

The product of its digits is 7168, while the sum is 30.

The square root of 4784421 is about 2187.3319364011. The cubic root of 4784421 is about 168.5038375209.

The spelling of 4784421 in words is "four million, seven hundred eighty-four thousand, four hundred twenty-one".