676627121 has 2 divisors, whose sum is σ = 676627122. Its totient is φ = 676627120.

The previous prime is 676627117. The next prime is 676627123. The reversal of 676627121 is 121726676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568154896 + 108472225 = 23836^2 + 10415^2 .

It is a cyclic number.

It is not a de Polignac number, because 676627121 - 2² = 676627117 is a prime.

Together with 676627123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (676627123) 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, 338313560 + 338313561.

It is an arithmetic number, because the mean of its divisors is an integer number (338313561).

Almost surely, 2^676627121 is an apocalyptic number.

It is an amenable number.

676627121 is a deficient number, since it is larger than the sum of its proper divisors (1).

676627121 is an equidigital number, since it uses as much as digits as its factorization.

676627121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 676627121 is about 26012.0572235262. The cubic root of 676627121 is about 877.9096048509.

The spelling of 676627121 in words is "six hundred seventy-six million, six hundred twenty-seven thousand, one hundred twenty-one".