5986621 has 2 divisors, whose sum is σ = 5986622. Its totient is φ = 5986620.

The previous prime is 5986619. The next prime is 5986663. The reversal of 5986621 is 1266895.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5354596 + 632025 = 2314^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 5986621 - 2¹ = 5986619 is a prime.

Together with 5986619, 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 (5986021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2993310 + 2993311.

It is an arithmetic number, because the mean of its divisors is an integer number (2993311).

Almost surely, 2^5986621 is an apocalyptic number.

It is an amenable number.

5986621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5986621 is an equidigital number, since it uses as much as digits as its factorization.

5986621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 5986621 is about 2446.7572417385. The cubic root of 5986621 is about 181.5768962341.

The spelling of 5986621 in words is "five million, nine hundred eighty-six thousand, six hundred twenty-one".