626949473 has 2 divisors, whose sum is σ = 626949474. Its totient is φ = 626949472.

The previous prime is 626949467. The next prime is 626949523. The reversal of 626949473 is 374949626.

It is an a-pointer prime, because the next prime (626949523) can be obtained adding 626949473 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412414864 + 214534609 = 20308^2 + 14647^2 .

It is a cyclic number.

It is not a de Polignac number, because 626949473 - 2¹⁰ = 626948449 is a prime.

It is not a weakly prime, because it can be changed into another prime (626949413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313474736 + 313474737.

It is an arithmetic number, because the mean of its divisors is an integer number (313474737).

Almost surely, 2^626949473 is an apocalyptic number.

It is an amenable number.

626949473 is a deficient number, since it is larger than the sum of its proper divisors (1).

626949473 is an equidigital number, since it uses as much as digits as its factorization.

626949473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 50.

The square root of 626949473 is about 25038.9591037647. The cubic root of 626949473 is about 855.8759978651.

The spelling of 626949473 in words is "six hundred twenty-six million, nine hundred forty-nine thousand, four hundred seventy-three".