2645653 has 4 divisors (see below), whose sum is σ = 2662048. Its totient is φ = 2629260.

The previous prime is 2645651. The next prime is 2645663. The reversal of 2645653 is 3565462.

2645653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2645653 - 2¹ = 2645651 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 6⁴ + 4¹⁰ + 5 + 6⁴ + 5³ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645651) 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 3 ways as a sum of consecutive naturals, for example, 7953 + ... + 8278.

It is an arithmetic number, because the mean of its divisors is an integer number (665512).

2^2645653 is an apocalyptic number.

It is an amenable number.

2645653 is a deficient number, since it is larger than the sum of its proper divisors (16395).

2645653 is a wasteful number, since it uses less digits than its factorization.

2645653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16394.

The product of its digits is 21600, while the sum is 31.

The square root of 2645653 is about 1626.5463411781. The cubic root of 2645653 is about 138.3070423092.

The spelling of 2645653 in words is "two million, six hundred forty-five thousand, six hundred fifty-three".