676400929 has 2 divisors, whose sum is σ = 676400930. Its totient is φ = 676400928.

The previous prime is 676400927. The next prime is 676401029. The reversal of 676400929 is 929004676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359026704 + 317374225 = 18948^2 + 17815^2 .

It is a cyclic number.

It is not a de Polignac number, because 676400929 - 2¹ = 676400927 is a prime.

Together with 676400927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (676400927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338200464 + 338200465.

It is an arithmetic number, because the mean of its divisors is an integer number (338200465).

Almost surely, 2^676400929 is an apocalyptic number.

It is an amenable number.

676400929 is a deficient number, since it is larger than the sum of its proper divisors (1).

676400929 is an equidigital number, since it uses as much as digits as its factorization.

676400929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 676400929 is about 26007.7090302087. The cubic root of 676400929 is about 877.8117674774.

It can be divided in two parts, 676400 and 929, that added together give a square (677329 = 823²).

The spelling of 676400929 in words is "six hundred seventy-six million, four hundred thousand, nine hundred twenty-nine".