2645705 has 8 divisors (see below), whose sum is σ = 3192000. Its totient is φ = 2105136.

The previous prime is 2645701. The next prime is 2645711. The reversal of 2645705 is 5075462.

2645705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2645705 - 2² = 2645701 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2645701) 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 in 7 ways as a sum of consecutive naturals, for example, 335 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (399000).

2^2645705 is an apocalyptic number.

It is an amenable number.

2645705 is a deficient number, since it is larger than the sum of its proper divisors (546295).

2645705 is a wasteful number, since it uses less digits than its factorization.

2645705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2645705 is about 1626.5623258886. The cubic root of 2645705 is about 138.3079484396.

The spelling of 2645705 in words is "two million, six hundred forty-five thousand, seven hundred five".