626262641 has 2 divisors, whose sum is σ = 626262642. Its totient is φ = 626262640.

The previous prime is 626262631. The next prime is 626262649. The reversal of 626262641 is 146262626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313998400 + 312264241 = 17720^2 + 17671^2 .

It is a cyclic number.

It is not a de Polignac number, because 626262641 - 2¹⁰ = 626261617 is a prime.

It is not a weakly prime, because it can be changed into another prime (626262649) 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, 313131320 + 313131321.

It is an arithmetic number, because the mean of its divisors is an integer number (313131321).

Almost surely, 2^626262641 is an apocalyptic number.

It is an amenable number.

626262641 is a deficient number, since it is larger than the sum of its proper divisors (1).

626262641 is an equidigital number, since it uses as much as digits as its factorization.

626262641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 626262641 is about 25025.2400787685. The cubic root of 626262641 is about 855.5633422509.

The spelling of 626262641 in words is "six hundred twenty-six million, two hundred sixty-two thousand, six hundred forty-one".