5812421 has 2 divisors, whose sum is σ = 5812422. Its totient is φ = 5812420.

The previous prime is 5812403. The next prime is 5812427. The reversal of 5812421 is 1242185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3960100 + 1852321 = 1990^2 + 1361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5812421 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5812427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2906210 + 2906211.

It is an arithmetic number, because the mean of its divisors is an integer number (2906211).

Almost surely, 2^5812421 is an apocalyptic number.

It is an amenable number.

5812421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5812421 is an equidigital number, since it uses as much as digits as its factorization.

5812421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 23.

The square root of 5812421 is about 2410.8963063558. The cubic root of 5812421 is about 179.7983441260.

The spelling of 5812421 in words is "five million, eight hundred twelve thousand, four hundred twenty-one".