9976915 has 12 divisors (see below), whose sum is σ = 12965184. Its totient is φ = 7366944.

The previous prime is 9976913. The next prime is 9976921. The reversal of 9976915 is 5196799.

It is not a de Polignac number, because 9976915 - 2¹ = 9976913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9976913) 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 in 11 ways as a sum of consecutive naturals, for example, 5059 + ... + 6748.

It is an arithmetic number, because the mean of its divisors is an integer number (1080432).

Almost surely, 2^9976915 is an apocalyptic number.

9976915 is a deficient number, since it is larger than the sum of its proper divisors (2988269).

9976915 is a wasteful number, since it uses less digits than its factorization.

9976915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11838 (or 11825 counting only the distinct ones).

The product of its digits is 153090, while the sum is 46.

The square root of 9976915 is about 3158.6254922038. The cubic root of 9976915 is about 215.2775575193.

The spelling of 9976915 in words is "nine million, nine hundred seventy-six thousand, nine hundred fifteen".