9998146 has 8 divisors (see below), whose sum is σ = 15649344. Its totient is φ = 4781700.

The previous prime is 9998143. The next prime is 9998147. The reversal of 9998146 is 6418999.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 217351 = 9998146 / (9 + 9 + 9 + 8 + 1 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 9998096 and 9998105.

It is not an unprimeable number, because it can be changed into a prime (9998141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108630 + ... + 108721.

It is an arithmetic number, because the mean of its divisors is an integer number (1956168).

Almost surely, 2^9998146 is an apocalyptic number.

9998146 is a deficient number, since it is larger than the sum of its proper divisors (5651198).

9998146 is a wasteful number, since it uses less digits than its factorization.

9998146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217376.

The product of its digits is 139968, while the sum is 46.

The square root of 9998146 is about 3161.9845034408. The cubic root of 9998146 is about 215.4301537739.

The spelling of 9998146 in words is "nine million, nine hundred ninety-eight thousand, one hundred forty-six".