9978350 has 12 divisors (see below), whose sum is σ = 18559824. Its totient is φ = 3991320.

The previous prime is 9978347. The next prime is 9978359. The reversal of 9978350 is 538799.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9978298 and 9978307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9978359) 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 5 ways as a sum of consecutive naturals, for example, 99734 + ... + 99833.

It is an arithmetic number, because the mean of its divisors is an integer number (1546652).

Almost surely, 2^9978350 is an apocalyptic number.

9978350 is a deficient number, since it is larger than the sum of its proper divisors (8581474).

9978350 is a wasteful number, since it uses less digits than its factorization.

9978350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199579 (or 199574 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 9978350 is about 3158.8526398045. The cubic root of 9978350 is about 215.2878782943.

The spelling of 9978350 in words is "nine million, nine hundred seventy-eight thousand, three hundred fifty".