9968915 has 8 divisors (see below), whose sum is σ = 13050288. Its totient is φ = 7250080.

The previous prime is 9968911. The next prime is 9968927. The reversal of 9968915 is 5198699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9968915 - 2² = 9968911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9968915.

It is not an unprimeable number, because it can be changed into a prime (9968911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90572 + ... + 90681.

It is an arithmetic number, because the mean of its divisors is an integer number (1631286).

Almost surely, 2^9968915 is an apocalyptic number.

9968915 is a deficient number, since it is larger than the sum of its proper divisors (3081373).

9968915 is a wasteful number, since it uses less digits than its factorization.

9968915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181269.

The product of its digits is 174960, while the sum is 47.

The square root of 9968915 is about 3157.3588646209. The cubic root of 9968915 is about 215.2200019527.

The spelling of 9968915 in words is "nine million, nine hundred sixty-eight thousand, nine hundred fifteen".