2818001 has 4 divisors (see below), whose sum is σ = 2846004. Its totient is φ = 2790000.

The previous prime is 2817973. The next prime is 2818027. The reversal of 2818001 is 1008182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2637376 + 180625 = 1624^2 + 425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2818001 is a prime.

It is a super-3 number, since 3×2818001³ = 67134333766141362003, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2812001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13850 + ... + 14051.

It is an arithmetic number, because the mean of its divisors is an integer number (711501).

2^2818001 is an apocalyptic number.

It is an amenable number.

2818001 is a deficient number, since it is larger than the sum of its proper divisors (28003).

2818001 is a wasteful number, since it uses less digits than its factorization.

2818001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28002.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 2818001 is about 1678.6902632707. The cubic root of 2818001 is about 141.2473735382.

The spelling of 2818001 in words is "two million, eight hundred eighteen thousand, one".