998623498 has 8 divisors (see below), whose sum is σ = 1523324160. Its totient is φ = 490848780.

The previous prime is 998623481. The next prime is 998623519. The reversal of 998623498 is 894326899.

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

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, 4231338 + ... + 4231573.

It is an arithmetic number, because the mean of its divisors is an integer number (190415520).

Almost surely, 2^998623498 is an apocalyptic number.

998623498 is a deficient number, since it is larger than the sum of its proper divisors (524700662).

998623498 is a wasteful number, since it uses less digits than its factorization.

998623498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8462972.

The product of its digits is 6718464, while the sum is 58.

The square root of 998623498 is about 31601.0046992180. The cubic root of 998623498 is about 999.5409553102.

The spelling of 998623498 in words is "nine hundred ninety-eight million, six hundred twenty-three thousand, four hundred ninety-eight".