9913976 has 8 divisors (see below), whose sum is σ = 18588720. Its totient is φ = 4956984.

The previous prime is 9913973. The next prime is 9913979. The reversal of 9913976 is 6793199.

It is a happy number.

9913976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9913973) and next prime (9913979).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619616 + ... + 619631.

It is an arithmetic number, because the mean of its divisors is an integer number (2323590).

Almost surely, 2^9913976 is an apocalyptic number.

It is an amenable number.

9913976 is a deficient number, since it is larger than the sum of its proper divisors (8674744).

9913976 is a wasteful number, since it uses less digits than its factorization.

9913976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239253 (or 1239249 counting only the distinct ones).

The product of its digits is 91854, while the sum is 44.

The square root of 9913976 is about 3148.6466934224. The cubic root of 9913976 is about 214.8239120676.

The spelling of 9913976 in words is "nine million, nine hundred thirteen thousand, nine hundred seventy-six".