2078001 has 8 divisors (see below), whose sum is σ = 3078560. Its totient is φ = 1385316.

The previous prime is 2077997. The next prime is 2078009. The reversal of 2078001 is 1008702.

It is not a de Polignac number, because 2078001 - 2² = 2077997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2078009) 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 in 7 ways as a sum of consecutive naturals, for example, 38455 + ... + 38508.

It is an arithmetic number, because the mean of its divisors is an integer number (384820).

2^2078001 is an apocalyptic number.

It is an amenable number.

2078001 is a deficient number, since it is larger than the sum of its proper divisors (1000559).

2078001 is an equidigital number, since it uses as much as digits as its factorization.

2078001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76972 (or 76966 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 2078001 is about 1441.5273150378. The cubic root of 2078001 is about 127.6091798377.

The spelling of 2078001 in words is "two million, seventy-eight thousand, one".