6840674 has 4 divisors (see below), whose sum is σ = 10261014. Its totient is φ = 3420336.

The previous prime is 6840661. The next prime is 6840721. The reversal of 6840674 is 4760486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4141225 + 2699449 = 2035^2 + 1643^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710167 + ... + 1710170.

Almost surely, 2^6840674 is an apocalyptic number.

6840674 is a deficient number, since it is larger than the sum of its proper divisors (3420340).

6840674 is a wasteful number, since it uses less digits than its factorization.

6840674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420339.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 6840674 is about 2615.4682181208. The cubic root of 6840674 is about 189.8306339288.

The spelling of 6840674 in words is "six million, eight hundred forty thousand, six hundred seventy-four".