6321493 has 2 divisors, whose sum is σ = 6321494. Its totient is φ = 6321492.

The previous prime is 6321479. The next prime is 6321521. The reversal of 6321493 is 3941236.

It is an a-pointer prime, because the next prime (6321521) can be obtained adding 6321493 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4422609 + 1898884 = 2103^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 6321493 - 2⁵ = 6321461 is a prime.

It is a super-2 number, since 2×6321493² = 79922547498098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6321443) 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 as a sum of consecutive naturals, namely, 3160746 + 3160747.

It is an arithmetic number, because the mean of its divisors is an integer number (3160747).

Almost surely, 2^6321493 is an apocalyptic number.

It is an amenable number.

6321493 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321493 is an equidigital number, since it uses as much as digits as its factorization.

6321493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 6321493 is about 2514.2579422167. The cubic root of 6321493 is about 184.9012670145.

The spelling of 6321493 in words is "six million, three hundred twenty-one thousand, four hundred ninety-three".