9956249 has 2 divisors, whose sum is σ = 9956250. Its totient is φ = 9956248.

The previous prime is 9956231. The next prime is 9956279. The reversal of 9956249 is 9426599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8761600 + 1194649 = 2960^2 + 1093^2 .

It is a cyclic number.

It is not a de Polignac number, because 9956249 - 2¹² = 9952153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9956279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4978124 + 4978125.

It is an arithmetic number, because the mean of its divisors is an integer number (4978125).

Almost surely, 2^9956249 is an apocalyptic number.

It is an amenable number.

9956249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9956249 is an equidigital number, since it uses as much as digits as its factorization.

9956249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 9956249 is about 3155.3524367335. The cubic root of 9956249 is about 215.1288141001.

The spelling of 9956249 in words is "nine million, nine hundred fifty-six thousand, two hundred forty-nine".