6740091 has 12 divisors (see below), whose sum is σ = 10096632. Its totient is φ = 4493232.

The previous prime is 6740089. The next prime is 6740099. The reversal of 6740091 is 1900476.

It is not a de Polignac number, because 6740091 - 2¹ = 6740089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6740099) 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, 13626 + ... + 14111.

It is an arithmetic number, because the mean of its divisors is an integer number (841386).

Almost surely, 2^6740091 is an apocalyptic number.

6740091 is a deficient number, since it is larger than the sum of its proper divisors (3356541).

6740091 is an equidigital number, since it uses as much as digits as its factorization.

6740091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27752 (or 27740 counting only the distinct ones).

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

The square root of 6740091 is about 2596.1685230354. The cubic root of 6740091 is about 188.8956339896.

The spelling of 6740091 in words is "six million, seven hundred forty thousand, ninety-one".