5620421 has 8 divisors (see below), whose sum is σ = 5987520. Its totient is φ = 5257408.

The previous prime is 5620397. The next prime is 5620427. The reversal of 5620421 is 1240265.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5620421 - 2¹⁴ = 5604037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5620393 and 5620402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5620427) 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 7 ways as a sum of consecutive naturals, for example, 2120 + ... + 3966.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^5620421 is an apocalyptic number.

It is an amenable number.

5620421 is a deficient number, since it is larger than the sum of its proper divisors (367099).

5620421 is a wasteful number, since it uses less digits than its factorization.

5620421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 5620421 is about 2370.7427106289. The cubic root of 5620421 is about 177.7963943033.

Adding to 5620421 its reverse (1240265), we get a palindrome (6860686).

The spelling of 5620421 in words is "five million, six hundred twenty thousand, four hundred twenty-one".