4472421 has 4 divisors (see below), whose sum is σ = 5963232. Its totient is φ = 2981612.

The previous prime is 4472399. The next prime is 4472431. The reversal of 4472421 is 1242744.

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 4472421 - 2⁶ = 4472357 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 4472391 and 4472400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4472431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745401 + ... + 745406.

It is an arithmetic number, because the mean of its divisors is an integer number (1490808).

Almost surely, 2^4472421 is an apocalyptic number.

It is an amenable number.

4472421 is a deficient number, since it is larger than the sum of its proper divisors (1490811).

4472421 is a wasteful number, since it uses less digits than its factorization.

4472421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490810.

The product of its digits is 1792, while the sum is 24.

The square root of 4472421 is about 2114.8099205366. The cubic root of 4472421 is about 164.7583975524.

The spelling of 4472421 in words is "four million, four hundred seventy-two thousand, four hundred twenty-one".