2680686 has 12 divisors (see below), whose sum is σ = 5808192. Its totient is φ = 893556.

The previous prime is 2680681. The next prime is 2680693. The reversal of 2680686 is 6860862.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2680686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680681) 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 5 ways as a sum of consecutive naturals, for example, 74446 + ... + 74481.

It is an arithmetic number, because the mean of its divisors is an integer number (484016).

2^2680686 is an apocalyptic number.

2680686 is an abundant number, since it is smaller than the sum of its proper divisors (3127506).

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

2680686 is a wasteful number, since it uses less digits than its factorization.

2680686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148935 (or 148932 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2680686 is about 1637.2800615655. The cubic root of 2680686 is about 138.9148418227.

The spelling of 2680686 in words is "two million, six hundred eighty thousand, six hundred eighty-six".