6740109 has 12 divisors (see below), whose sum is σ = 10308636. Its totient is φ = 4228992.

The previous prime is 6740099. The next prime is 6740131. The reversal of 6740109 is 9010476.

It can be written as a sum of positive squares in 2 ways, for example, as 5076009 + 1664100 = 2253^2 + 1290^2 .

It is not a de Polignac number, because 6740109 - 2⁵ = 6740077 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

6740109 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21874 + ... + 22179.

It is an arithmetic number, because the mean of its divisors is an integer number (859053).

Almost surely, 2^6740109 is an apocalyptic number.

It is an amenable number.

6740109 is a deficient number, since it is larger than the sum of its proper divisors (3568527).

6740109 is a wasteful number, since it uses less digits than its factorization.

6740109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44076 (or 44073 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 6740109 is about 2596.1719896802. The cubic root of 6740109 is about 188.8958021435.

The spelling of 6740109 in words is "six million, seven hundred forty thousand, one hundred nine".