2006784387 has 24 divisors (see below), whose sum is σ = 2914049424. Its totient is φ = 1330789824.

The previous prime is 2006784383. The next prime is 2006784419. The reversal of 2006784387 is 7834876002.

It is a happy number.

2006784387 is a `hidden beast` number, since 200 + 6 + 7 + 8 + 438 + 7 = 666.

It is not a de Polignac number, because 2006784387 - 2² = 2006784383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2006784383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2272248 + ... + 2273130.

It is an arithmetic number, because the mean of its divisors is an integer number (121418726).

Almost surely, 2^2006784387 is an apocalyptic number.

2006784387 is a deficient number, since it is larger than the sum of its proper divisors (907265037).

2006784387 is a wasteful number, since it uses less digits than its factorization.

2006784387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 2006784387 is about 44797.1470855009. The cubic root of 2006784387 is about 1261.3440740467.

The spelling of 2006784387 in words is "two billion, six million, seven hundred eighty-four thousand, three hundred eighty-seven".