9906959 has 4 divisors (see below), whose sum is σ = 9972720. Its totient is φ = 9841200.

The previous prime is 9906943. The next prime is 9906973. The reversal of 9906959 is 9596099.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9906959 - 2⁴ = 9906943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9906929) 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 in 3 ways as a sum of consecutive naturals, for example, 32654 + ... + 32955.

It is an arithmetic number, because the mean of its divisors is an integer number (2493180).

Almost surely, 2^9906959 is an apocalyptic number.

9906959 is a deficient number, since it is larger than the sum of its proper divisors (65761).

9906959 is a wasteful number, since it uses less digits than its factorization.

9906959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65760.

The product of its (nonzero) digits is 196830, while the sum is 47.

The square root of 9906959 is about 3147.5322079369. The cubic root of 9906959 is about 214.7732167940.

The spelling of 9906959 in words is "nine million, nine hundred six thousand, nine hundred fifty-nine".