5993621 has 2 divisors, whose sum is σ = 5993622. Its totient is φ = 5993620.

The previous prime is 5993609. The next prime is 5993623. The reversal of 5993621 is 1263995.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3478225 + 2515396 = 1865^2 + 1586^2 .

It is a cyclic number.

It is not a de Polignac number, because 5993621 - 2⁶ = 5993557 is a prime.

Together with 5993623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5993623) 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 as a sum of consecutive naturals, namely, 2996810 + 2996811.

It is an arithmetic number, because the mean of its divisors is an integer number (2996811).

Almost surely, 2^5993621 is an apocalyptic number.

It is an amenable number.

5993621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5993621 is an equidigital number, since it uses as much as digits as its factorization.

5993621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 35.

The square root of 5993621 is about 2448.1872885872. The cubic root of 5993621 is about 181.6476397135.

The spelling of 5993621 in words is "five million, nine hundred ninety-three thousand, six hundred twenty-one".