2646001 has 2 divisors, whose sum is σ = 2646002. Its totient is φ = 2646000.

The previous prime is 2645987. The next prime is 2646011. The reversal of 2646001 is 1006462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1752976 + 893025 = 1324^2 + 945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2646001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2646001.

It is not a weakly prime, because it can be changed into another prime (2646011) 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, 1323000 + 1323001.

It is an arithmetic number, because the mean of its divisors is an integer number (1323001).

2^2646001 is an apocalyptic number.

It is an amenable number.

2646001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646001 is an equidigital number, since it uses as much as digits as its factorization.

2646001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2646001 is about 1626.6533127867. The cubic root of 2646001 is about 138.3131061859.

The spelling of 2646001 in words is "two million, six hundred forty-six thousand, one".