2685601 has 2 divisors, whose sum is σ = 2685602. Its totient is φ = 2685600.

The previous prime is 2685587. The next prime is 2685607. The reversal of 2685601 is 1065862.

2685601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1918225 + 767376 = 1385^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 2685601 - 2¹⁷ = 2554529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2685601.

It is not a weakly prime, because it can be changed into another prime (2685607) 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 as a sum of consecutive naturals, namely, 1342800 + 1342801.

It is an arithmetic number, because the mean of its divisors is an integer number (1342801).

2^2685601 is an apocalyptic number.

It is an amenable number.

2685601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685601 is an equidigital number, since it uses as much as digits as its factorization.

2685601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2685601 is about 1638.7803391547. The cubic root of 2685601 is about 138.9996894564. Note that the first 3 decimals are identical.

The spelling of 2685601 in words is "two million, six hundred eighty-five thousand, six hundred one".