6759981 has 18 divisors (see below), whose sum is σ = 9970350. Its totient is φ = 4413360.

The previous prime is 6759979. The next prime is 6759983. The reversal of 6759981 is 1899576.

6759981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6759979) and next prime (6759983).

It can be written as a sum of positive squares in only one way, i.e., 4536900 + 2223081 = 2130^2 + 1491^2 .

It is not a de Polignac number, because 6759981 - 2¹ = 6759979 is a prime.

It is a super-2 number, since 2×6759981² = 91394686240722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6 + 7⁵ + 5⁹ + 9⁴ + 9⁷ + 8³ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6759983) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45295 + ... + 45443.

Almost surely, 2^6759981 is an apocalyptic number.

It is an amenable number.

6759981 is a deficient number, since it is larger than the sum of its proper divisors (3210369).

6759981 is a wasteful number, since it uses less digits than its factorization.

6759981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 223 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 6759981 is about 2599.9963461513. The cubic root of 6759981 is about 189.0812617722.

The spelling of 6759981 in words is "six million, seven hundred fifty-nine thousand, nine hundred eighty-one".