9925969 has 2 divisors, whose sum is σ = 9925970. Its totient is φ = 9925968.

The previous prime is 9925963. The next prime is 9925973. The reversal of 9925969 is 9695299.

9925969 is digitally balanced in base 3, 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., 9486400 + 439569 = 3080^2 + 663^2 .

It is an emirp because it is prime and its reverse (9695299) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9925969 is a prime.

It is a super-2 number, since 2×9925969² = 197049721177922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 9³ + 9³ + 2⁹ + 5⁷ + 9⁷ + 6⁷ + 9⁷ .

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9925963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4962984 + 4962985.

It is an arithmetic number, because the mean of its divisors is an integer number (4962985).

Almost surely, 2^9925969 is an apocalyptic number.

It is an amenable number.

9925969 is a deficient number, since it is larger than the sum of its proper divisors (1).

9925969 is an equidigital number, since it uses as much as digits as its factorization.

9925969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393660, while the sum is 49.

The square root of 9925969 is about 3150.5505868022. The cubic root of 9925969 is about 214.9105017798.

The spelling of 9925969 in words is "nine million, nine hundred twenty-five thousand, nine hundred sixty-nine".