682991123 has 2 divisors, whose sum is σ = 682991124. Its totient is φ = 682991122.

The previous prime is 682991087. The next prime is 682991137. The reversal of 682991123 is 321199286.

682991123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 682991123 - 2¹⁸ = 682728979 is a prime.

It is a super-2 number, since 2×682991123² = 932953748193602258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (682991173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341495561 + 341495562.

It is an arithmetic number, because the mean of its divisors is an integer number (341495562).

Almost surely, 2^682991123 is an apocalyptic number.

682991123 is a deficient number, since it is larger than the sum of its proper divisors (1).

682991123 is an equidigital number, since it uses as much as digits as its factorization.

682991123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 682991123 is about 26134.0988557096. The cubic root of 682991123 is about 880.6534071956.

The spelling of 682991123 in words is "six hundred eighty-two million, nine hundred ninety-one thousand, one hundred twenty-three".