6740658 has 20 divisors (see below), whose sum is σ = 15104430. Its totient is φ = 2246832.

The previous prime is 6740651. The next prime is 6740659. The reversal of 6740658 is 8560476.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4028049 + 2712609 = 2007^2 + 1647^2 .

It is not an unprimeable number, because it can be changed into a prime (6740651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20643 + ... + 20966.

Almost surely, 2^6740658 is an apocalyptic number.

6740658 is an abundant number, since it is smaller than the sum of its proper divisors (8363772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6740658 is a wasteful number, since it uses less digits than its factorization.

6740658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41623 (or 41614 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 6740658 is about 2596.2777201216. The cubic root of 6740658 is about 188.9009306946.

The spelling of 6740658 in words is "six million, seven hundred forty thousand, six hundred fifty-eight".