6751009 has 2 divisors, whose sum is σ = 6751010. Its totient is φ = 6751008.

The previous prime is 6751001. The next prime is 6751021. The reversal of 6751009 is 9001576.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4100625 + 2650384 = 2025^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 6751009 - 2³ = 6751001 is a prime.

It is a super-2 number, since 2×6751009² = 91152245036162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6751001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3375504 + 3375505.

It is an arithmetic number, because the mean of its divisors is an integer number (3375505).

Almost surely, 2^6751009 is an apocalyptic number.

It is an amenable number.

6751009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6751009 is an equidigital number, since it uses as much as digits as its factorization.

6751009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 6751009 is about 2598.2703862377. The cubic root of 6751009 is about 188.9975737583.

It can be divided in two parts, 67 and 51009, that added together give a square (51076 = 226²).

The spelling of 6751009 in words is "six million, seven hundred fifty-one thousand, nine".