6740990 has 8 divisors (see below), whose sum is σ = 12133800. Its totient is φ = 2696392.

The previous prime is 6740989. The next prime is 6740999. The reversal of 6740990 is 990476.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6740990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337040 + ... + 337059.

It is an arithmetic number, because the mean of its divisors is an integer number (1516725).

Almost surely, 2^6740990 is an apocalyptic number.

6740990 is a deficient number, since it is larger than the sum of its proper divisors (5392810).

6740990 is a wasteful number, since it uses less digits than its factorization.

6740990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674106.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 6740990 is about 2596.3416570244. The cubic root of 6740990 is about 188.9040319783.

The spelling of 6740990 in words is "six million, seven hundred forty thousand, nine hundred ninety".