2629813 has 2 divisors, whose sum is σ = 2629814. Its totient is φ = 2629812.

The previous prime is 2629811. The next prime is 2629829. The reversal of 2629813 is 3189262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2486929 + 142884 = 1577^2 + 378^2 .

It is a cyclic number.

It is not a de Polignac number, because 2629813 - 2¹ = 2629811 is a prime.

Together with 2629811, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 2²¹ + 9² + 8³ + 1 + 3 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2629811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314906 + 1314907.

It is an arithmetic number, because the mean of its divisors is an integer number (1314907).

2^2629813 is an apocalyptic number.

It is an amenable number.

2629813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2629813 is an equidigital number, since it uses as much as digits as its factorization.

2629813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 2629813 is about 1621.6698184279. The cubic root of 2629813 is about 138.0304665633.

The spelling of 2629813 in words is "two million, six hundred twenty-nine thousand, eight hundred thirteen".