626000449 has 2 divisors, whose sum is σ = 626000450. Its totient is φ = 626000448.

The previous prime is 626000387. The next prime is 626000489. The reversal of 626000449 is 944000626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626000400 + 49 = 25020^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 626000449 - 2⁹ = 625999937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 626000449.

It is not a weakly prime, because it can be changed into another prime (626000489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313000224 + 313000225.

It is an arithmetic number, because the mean of its divisors is an integer number (313000225).

Almost surely, 2^626000449 is an apocalyptic number.

It is an amenable number.

626000449 is a deficient number, since it is larger than the sum of its proper divisors (1).

626000449 is an equidigital number, since it uses as much as digits as its factorization.

626000449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 626000449 is about 25020.0009792166. Note that the first 3 decimals coincide. The cubic root of 626000449 is about 855.4439284665.

It can be divided in two parts, 6260004 and 49, that multiplied together give a square (306740196 = 17514²).

The spelling of 626000449 in words is "six hundred twenty-six million, four hundred forty-nine", and thus it is an aban number.