682388813 has 2 divisors, whose sum is σ = 682388814. Its totient is φ = 682388812.

The previous prime is 682388809. The next prime is 682388827. The reversal of 682388813 is 318883286.

682388813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682358884 + 29929 = 26122^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 682388813 - 2² = 682388809 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (682388843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341194406 + 341194407.

It is an arithmetic number, because the mean of its divisors is an integer number (341194407).

Almost surely, 2^682388813 is an apocalyptic number.

It is an amenable number.

682388813 is a deficient number, since it is larger than the sum of its proper divisors (1).

682388813 is an equidigital number, since it uses as much as digits as its factorization.

682388813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 47.

The square root of 682388813 is about 26122.5728633303. The cubic root of 682388813 is about 880.3944568546.

The spelling of 682388813 in words is "six hundred eighty-two million, three hundred eighty-eight thousand, eight hundred thirteen".