6749081 has 2 divisors, whose sum is σ = 6749082. Its totient is φ = 6749080.

The previous prime is 6749053. The next prime is 6749087. The reversal of 6749081 is 1809476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5837056 + 912025 = 2416^2 + 955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6749081 is a prime.

It is a super-2 number, since 2×6749081² = 91100188689122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6749087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3374540 + 3374541.

It is an arithmetic number, because the mean of its divisors is an integer number (3374541).

Almost surely, 2^6749081 is an apocalyptic number.

It is an amenable number.

6749081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6749081 is an equidigital number, since it uses as much as digits as its factorization.

6749081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 6749081 is about 2597.8993437006. The cubic root of 6749081 is about 188.9795802991.

The spelling of 6749081 in words is "six million, seven hundred forty-nine thousand, eighty-one".