2006078 has 4 divisors (see below), whose sum is σ = 3009120. Its totient is φ = 1003038.

The previous prime is 2006071. The next prime is 2006087. The reversal of 2006078 is 8706002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8706002 = 2 ⋅4353001.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501518 + ... + 501521.

It is an arithmetic number, because the mean of its divisors is an integer number (752280).

2^2006078 is an apocalyptic number.

2006078 is a deficient number, since it is larger than the sum of its proper divisors (1003042).

2006078 is a wasteful number, since it uses less digits than its factorization.

2006078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003041.

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

The square root of 2006078 is about 1416.3608297323. The cubic root of 2006078 is about 126.1196059205.

The spelling of 2006078 in words is "two million, six thousand, seventy-eight".