9998458 has 8 divisors (see below), whose sum is σ = 15041952. Its totient is φ = 4984476.

The previous prime is 9998447. The next prime is 9998459. The reversal of 9998458 is 8548999.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998459) 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, 6510 + ... + 7897.

It is an arithmetic number, because the mean of its divisors is an integer number (1880244).

Almost surely, 2^9998458 is an apocalyptic number.

9998458 is a deficient number, since it is larger than the sum of its proper divisors (5043494).

9998458 is a wasteful number, since it uses less digits than its factorization.

9998458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14756.

The product of its digits is 933120, while the sum is 52.

The square root of 9998458 is about 3162.0338391611. The cubic root of 9998458 is about 215.4323946396.

The spelling of 9998458 in words is "nine million, nine hundred ninety-eight thousand, four hundred fifty-eight".