4475421 has 6 divisors (see below), whose sum is σ = 6464510. Its totient is φ = 2983608.

The previous prime is 4475417. The next prime is 4475423. The reversal of 4475421 is 1245744.

It can be written as a sum of positive squares in only one way, i.e., 2340900 + 2134521 = 1530^2 + 1461^2 .

It is not a de Polignac number, because 4475421 - 2² = 4475417 is a prime.

It is an Ulam 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 (4475423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248626 + ... + 248643.

Almost surely, 2^4475421 is an apocalyptic number.

It is an amenable number.

4475421 is a deficient number, since it is larger than the sum of its proper divisors (1989089).

4475421 is a wasteful number, since it uses less digits than its factorization.

4475421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497275 (or 497272 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 4475421 is about 2115.5190852365. The cubic root of 4475421 is about 164.7952280682.

The spelling of 4475421 in words is "four million, four hundred seventy-five thousand, four hundred twenty-one".