9998522 has 8 divisors (see below), whose sum is σ = 15787200. Its totient is φ = 4736124.

The previous prime is 9998479. The next prime is 9998539. The reversal of 9998522 is 2258999.

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

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131522 + ... + 131597.

It is an arithmetic number, because the mean of its divisors is an integer number (1973400).

Almost surely, 2^9998522 is an apocalyptic number.

9998522 is a deficient number, since it is larger than the sum of its proper divisors (5788678).

9998522 is a wasteful number, since it uses less digits than its factorization.

9998522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263140.

The product of its digits is 116640, while the sum is 44.

The square root of 9998522 is about 3162.0439592137. The cubic root of 9998522 is about 215.4328542986.

The spelling of 9998522 in words is "nine million, nine hundred ninety-eight thousand, five hundred twenty-two".