4875421 has 4 divisors (see below), whose sum is σ = 4884732. Its totient is φ = 4866112.

The previous prime is 4875407. The next prime is 4875439. The reversal of 4875421 is 1245784.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 2595321 = 1510^2 + 1611^2 .

It is a cyclic number.

It is not a de Polignac number, because 4875421 - 2⁷ = 4875293 is a prime.

It is a d-powerful number, because it can be written as 4³ + 8³ + 7⁷ + 5⁹ + 4⁵ + 2²¹ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4875491) 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, 3820 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (1221183).

Almost surely, 2^4875421 is an apocalyptic number.

It is an amenable number.

4875421 is a deficient number, since it is larger than the sum of its proper divisors (9311).

4875421 is an equidigital number, since it uses as much as digits as its factorization.

4875421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9310.

The product of its digits is 8960, while the sum is 31.

The square root of 4875421 is about 2208.0355522500. The cubic root of 4875421 is about 169.5654530359.

The spelling of 4875421 in words is "four million, eight hundred seventy-five thousand, four hundred twenty-one".