2071684 has 12 divisors (see below), whose sum is σ = 3816400. Its totient is φ = 981288.

The previous prime is 2071681. The next prime is 2071687. The reversal of 2071684 is 4861702.

It is an interprime number because it is at equal distance from previous prime (2071681) and next prime (2071687).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2071681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13554 + ... + 13705.

2^2071684 is an apocalyptic number.

It is an amenable number.

2071684 is a deficient number, since it is larger than the sum of its proper divisors (1744716).

2071684 is a wasteful number, since it uses less digits than its factorization.

2071684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27282 (or 27280 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2071684 is about 1439.3345684725. The cubic root of 2071684 is about 127.4797404693.

It can be divided in two parts, 207 and 1684, that added together give a triangular number (1891 = T₆₁).

The spelling of 2071684 in words is "two million, seventy-one thousand, six hundred eighty-four".