2653813 has 2 divisors, whose sum is σ = 2653814. Its totient is φ = 2653812.

The previous prime is 2653811. The next prime is 2653841. The reversal of 2653813 is 3183562.

It is an a-pointer prime, because the next prime (2653841) can be obtained adding 2653813 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2365444 + 288369 = 1538^2 + 537^2 .

It is a cyclic number.

It is not a de Polignac number, because 2653813 - 2¹ = 2653811 is a prime.

Together with 2653811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2653811) 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, 1326906 + 1326907.

It is an arithmetic number, because the mean of its divisors is an integer number (1326907).

2^2653813 is an apocalyptic number.

It is an amenable number.

2653813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2653813 is an equidigital number, since it uses as much as digits as its factorization.

2653813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 2653813 is about 1629.0527922692. The cubic root of 2653813 is about 138.4490900569.

The spelling of 2653813 in words is "two million, six hundred fifty-three thousand, eight hundred thirteen".