2000784 has 40 divisors (see below), whose sum is σ = 5248672. Its totient is φ = 656640.

The previous prime is 2000767. The next prime is 2000807. The reversal of 2000784 is 4870002.

It is a happy number.

It is a super-2 number, since 2×2000784² = 8006273229312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2000784.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3219 + ... + 3789.

2^2000784 is an apocalyptic number.

2000784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2000784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2624336).

2000784 is an abundant number, since it is smaller than the sum of its proper divisors (3247888).

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

2000784 is a wasteful number, since it uses less digits than its factorization.

2000784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2000784 is about 1414.4907210724. The cubic root of 2000784 is about 126.0085658072.

Adding to 2000784 its reverse (4870002), we get a palindrome (6870786).

The spelling of 2000784 in words is "two million, seven hundred eighty-four", and thus it is an aban number.