6700840 has 16 divisors (see below), whose sum is σ = 15076980. Its totient is φ = 2680320.

The previous prime is 6700831. The next prime is 6700849. The reversal of 6700840 is 480076.

It is an interprime number because it is at equal distance from previous prime (6700831) and next prime (6700849).

It can be written as a sum of positive squares in 2 ways, for example, as 6646084 + 54756 = 2578^2 + 234^2 .

It is not an unprimeable number, because it can be changed into a prime (6700849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83721 + ... + 83800.

Almost surely, 2^6700840 is an apocalyptic number.

It is an amenable number.

6700840 is an abundant number, since it is smaller than the sum of its proper divisors (8376140).

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

6700840 is a wasteful number, since it uses less digits than its factorization.

6700840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167532 (or 167528 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 6700840 is about 2588.5980761795. The cubic root of 6700840 is about 188.5282412358.

The spelling of 6700840 in words is "six million, seven hundred thousand, eight hundred forty".