626260493 has 2 divisors, whose sum is σ = 626260494. Its totient is φ = 626260492.

The previous prime is 626260451. The next prime is 626260513. The reversal of 626260493 is 394062626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371602729 + 254657764 = 19277^2 + 15958^2 .

It is a cyclic number.

It is not a de Polignac number, because 626260493 - 2¹⁶ = 626194957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626260403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313130246 + 313130247.

It is an arithmetic number, because the mean of its divisors is an integer number (313130247).

Almost surely, 2^626260493 is an apocalyptic number.

It is an amenable number.

626260493 is a deficient number, since it is larger than the sum of its proper divisors (1).

626260493 is an equidigital number, since it uses as much as digits as its factorization.

626260493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 626260493 is about 25025.1971620605. The cubic root of 626260493 is about 855.5623640925.

The spelling of 626260493 in words is "six hundred twenty-six million, two hundred sixty thousand, four hundred ninety-three".