6212749 has 2 divisors, whose sum is σ = 6212750. Its totient is φ = 6212748.

The previous prime is 6212747. The next prime is 6212761. The reversal of 6212749 is 9472126.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5846724 + 366025 = 2418^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 6212749 - 2¹ = 6212747 is a prime.

Together with 6212747, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6212749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6212747) 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, 3106374 + 3106375.

It is an arithmetic number, because the mean of its divisors is an integer number (3106375).

Almost surely, 2^6212749 is an apocalyptic number.

It is an amenable number.

6212749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6212749 is an equidigital number, since it uses as much as digits as its factorization.

6212749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 6212749 is about 2492.5386656981. The cubic root of 6212749 is about 183.8348885080.

The spelling of 6212749 in words is "six million, two hundred twelve thousand, seven hundred forty-nine".