4775421 has 16 divisors (see below), whose sum is σ = 7593984. Its totient is φ = 2609904.

The previous prime is 4775417. The next prime is 4775423. The reversal of 4775421 is 1245774.

It is not a de Polignac number, because 4775421 - 2² = 4775417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4775423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4461 + ... + 5426.

It is an arithmetic number, because the mean of its divisors is an integer number (474624).

Almost surely, 2^4775421 is an apocalyptic number.

It is an amenable number.

4775421 is a deficient number, since it is larger than the sum of its proper divisors (2818563).

4775421 is a wasteful number, since it uses less digits than its factorization.

4775421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9920.

The product of its digits is 7840, while the sum is 30.

The square root of 4775421 is about 2185.2736670724. The cubic root of 4775421 is about 168.3981133763.

The spelling of 4775421 in words is "four million, seven hundred seventy-five thousand, four hundred twenty-one".