9978113 has 8 divisors (see below), whose sum is σ = 10445568. Its totient is φ = 9513504.

The previous prime is 9978103. The next prime is 9978119. The reversal of 9978113 is 3118799.

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

It is a cyclic number.

It is not a de Polignac number, because 9978113 - 2¹⁸ = 9715969 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9978119) 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, 10181 + ... + 11117.

It is an arithmetic number, because the mean of its divisors is an integer number (1305696).

Almost surely, 2^9978113 is an apocalyptic number.

It is an amenable number.

9978113 is a deficient number, since it is larger than the sum of its proper divisors (467455).

9978113 is a wasteful number, since it uses less digits than its factorization.

9978113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423.

The product of its digits is 13608, while the sum is 38.

The square root of 9978113 is about 3158.8151259610. The cubic root of 9978113 is about 215.2861738165.

The spelling of 9978113 in words is "nine million, nine hundred seventy-eight thousand, one hundred thirteen".