2671686 has 24 divisors (see below), whose sum is σ = 6129864. Its totient is φ = 838080.

The previous prime is 2671681. The next prime is 2671693. The reversal of 2671686 is 6861762.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2671686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2671681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4060 + ... + 4671.

It is an arithmetic number, because the mean of its divisors is an integer number (255411).

2^2671686 is an apocalyptic number.

2671686 is an abundant number, since it is smaller than the sum of its proper divisors (3458178).

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

2671686 is a wasteful number, since it uses less digits than its factorization.

2671686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756 (or 8753 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 2671686 is about 1634.5292900404. The cubic root of 2671686 is about 138.7592056225.

It can be divided in two parts, 267 and 1686, that added together give a triangular number (1953 = T₆₂).

The spelling of 2671686 in words is "two million, six hundred seventy-one thousand, six hundred eighty-six".