4619421 has 6 divisors (see below), whose sum is σ = 6672510. Its totient is φ = 3079608.

The previous prime is 4619399. The next prime is 4619441. The reversal of 4619421 is 1249164.

4619421 is a `hidden beast` number, since 4 + 619 + 42 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4575321 + 44100 = 2139^2 + 210^2 .

It is not a de Polignac number, because 4619421 - 2⁶ = 4619357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4619441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256626 + ... + 256643.

It is an arithmetic number, because the mean of its divisors is an integer number (1112085).

Almost surely, 2^4619421 is an apocalyptic number.

It is an amenable number.

4619421 is a deficient number, since it is larger than the sum of its proper divisors (2053089).

4619421 is a wasteful number, since it uses less digits than its factorization.

4619421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513275 (or 513272 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 4619421 is about 2149.2838342108. The cubic root of 4619421 is about 166.5440729579.

The spelling of 4619421 in words is "four million, six hundred nineteen thousand, four hundred twenty-one".