682778827 has 2 divisors, whose sum is σ = 682778828. Its totient is φ = 682778826.

The previous prime is 682778783. The next prime is 682778881. The reversal of 682778827 is 728877286.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 682778827 - 2¹⁹ = 682254539 is a prime.

It is not a weakly prime, because it can be changed into another prime (682778027) 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, 341389413 + 341389414.

It is an arithmetic number, because the mean of its divisors is an integer number (341389414).

Almost surely, 2^682778827 is an apocalyptic number.

682778827 is a deficient number, since it is larger than the sum of its proper divisors (1).

682778827 is an equidigital number, since it uses as much as digits as its factorization.

682778827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4214784, while the sum is 55.

The square root of 682778827 is about 26130.0368732997. The cubic root of 682778827 is about 880.5621524371.

The spelling of 682778827 in words is "six hundred eighty-two million, seven hundred seventy-eight thousand, eight hundred twenty-seven".