2000678 has 24 divisors (see below), whose sum is σ = 3291456. Its totient is φ = 910800.

The previous prime is 2000671. The next prime is 2000689. The reversal of 2000678 is 8760002.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000671) 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 11 ways as a sum of consecutive naturals, for example, 32768 + ... + 32828.

It is an arithmetic number, because the mean of its divisors is an integer number (137144).

2^2000678 is an apocalyptic number.

2000678 is a deficient number, since it is larger than the sum of its proper divisors (1290778).

2000678 is a wasteful number, since it uses less digits than its factorization.

2000678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2000678 is about 1414.4532512600. The cubic root of 2000678 is about 126.0063404889.

The spelling of 2000678 in words is "two million, six hundred seventy-eight", and thus it is an aban number.