6690580 has 24 divisors (see below), whose sum is σ = 15131592. Its totient is φ = 2470272.

The previous prime is 6690577. The next prime is 6690583. The reversal of 6690580 is 850966.

It is an interprime number because it is at equal distance from previous prime (6690577) and next prime (6690583).

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 6563844 = 356^2 + 2562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12607 + ... + 13126.

It is an arithmetic number, because the mean of its divisors is an integer number (630483).

Almost surely, 2^6690580 is an apocalyptic number.

It is an amenable number.

6690580 is an abundant number, since it is smaller than the sum of its proper divisors (8441012).

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

6690580 is a wasteful number, since it uses less digits than its factorization.

6690580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25755 (or 25753 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 6690580 is about 2586.6155493231. The cubic root of 6690580 is about 188.4319703289.

The spelling of 6690580 in words is "six million, six hundred ninety thousand, five hundred eighty".