9980629 has 2 divisors, whose sum is σ = 9980630. Its totient is φ = 9980628.

The previous prime is 9980603. The next prime is 9980693. The reversal of 9980629 is 9260899.

9980629 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9778129 + 202500 = 3127^2 + 450^2 .

It is an emirp because it is prime and its reverse (9260899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9980629 - 2¹⁹ = 9456341 is a prime.

It is a super-2 number, since 2×9980629² = 199225910471282, which contains 22 as substring.

9980629 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9980699) 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, 4990314 + 4990315.

It is an arithmetic number, because the mean of its divisors is an integer number (4990315).

Almost surely, 2^9980629 is an apocalyptic number.

It is an amenable number.

9980629 is a deficient number, since it is larger than the sum of its proper divisors (1).

9980629 is an equidigital number, since it uses as much as digits as its factorization.

9980629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 9980629 is about 3159.2133514532. The cubic root of 9980629 is about 215.3042672339.

It can be divided in two parts, 9980 and 629, that added together give a square (10609 = 103²).

The spelling of 9980629 in words is "nine million, nine hundred eighty thousand, six hundred twenty-nine".