626349697 has 2 divisors, whose sum is σ = 626349698. Its totient is φ = 626349696.

The previous prime is 626349677. The next prime is 626349733. The reversal of 626349697 is 796943626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474542656 + 151807041 = 21784^2 + 12321^2 .

It is a cyclic number.

It is not a de Polignac number, because 626349697 - 2²³ = 617961089 is a prime.

It is not a weakly prime, because it can be changed into another prime (626349617) 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, 313174848 + 313174849.

It is an arithmetic number, because the mean of its divisors is an integer number (313174849).

Almost surely, 2^626349697 is an apocalyptic number.

It is an amenable number.

626349697 is a deficient number, since it is larger than the sum of its proper divisors (1).

626349697 is an equidigital number, since it uses as much as digits as its factorization.

626349697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 52.

The square root of 626349697 is about 25026.9793822587. The cubic root of 626349697 is about 855.6029840170.

The spelling of 626349697 in words is "six hundred twenty-six million, three hundred forty-nine thousand, six hundred ninety-seven".