5228421 has 16 divisors (see below), whose sum is σ = 7769088. Its totient is φ = 3100400.

The previous prime is 5228417. The next prime is 5228423. The reversal of 5228421 is 1248225.

It is a cyclic number.

It is not a de Polignac number, because 5228421 - 2² = 5228417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5228391 and 5228400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5228423) 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 15 ways as a sum of consecutive naturals, for example, 135 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (485568).

Almost surely, 2^5228421 is an apocalyptic number.

It is an amenable number.

5228421 is a deficient number, since it is larger than the sum of its proper divisors (2540667).

5228421 is a wasteful number, since it uses less digits than its factorization.

5228421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its digits is 1280, while the sum is 24.

The square root of 5228421 is about 2286.5740748990. The cubic root of 5228421 is about 173.5628808665.

The spelling of 5228421 in words is "five million, two hundred twenty-eight thousand, four hundred twenty-one".