5421993 has 16 divisors (see below), whose sum is σ = 7527936. Its totient is φ = 3467520.

The previous prime is 5421947. The next prime is 5422003. The reversal of 5421993 is 3991245.

It is not a de Polignac number, because 5421993 - 2⁸ = 5421737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5421193) 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, 15921 + ... + 16257.

It is an arithmetic number, because the mean of its divisors is an integer number (470496).

Almost surely, 2^5421993 is an apocalyptic number.

It is an amenable number.

5421993 is a deficient number, since it is larger than the sum of its proper divisors (2105943).

5421993 is a wasteful number, since it uses less digits than its factorization.

5421993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its digits is 9720, while the sum is 33.

The square root of 5421993 is about 2328.5173394244. The cubic root of 5421993 is about 175.6789191637.

The spelling of 5421993 in words is "five million, four hundred twenty-one thousand, nine hundred ninety-three".