626401093 has 2 divisors, whose sum is σ = 626401094. Its totient is φ = 626401092.

The previous prime is 626401079. The next prime is 626401103. The reversal of 626401093 is 390104626.

626401093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337163044 + 289238049 = 18362^2 + 17007^2 .

It is a cyclic number.

It is not a de Polignac number, because 626401093 - 2¹³ = 626392901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626401003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313200546 + 313200547.

It is an arithmetic number, because the mean of its divisors is an integer number (313200547).

Almost surely, 2^626401093 is an apocalyptic number.

It is an amenable number.

626401093 is a deficient number, since it is larger than the sum of its proper divisors (1).

626401093 is an equidigital number, since it uses as much as digits as its factorization.

626401093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 626401093 is about 25028.0061730854. The cubic root of 626401093 is about 855.6263859433.

The spelling of 626401093 in words is "six hundred twenty-six million, four hundred one thousand, ninety-three".