998724498 has 16 divisors (see below), whose sum is σ = 2051434560. Its totient is φ = 323910576.

The previous prime is 998724497. The next prime is 998724499. The reversal of 998724498 is 894427899.

It is an interprime number because it is at equal distance from previous prime (998724497) and next prime (998724499).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (998724497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249158 + ... + 2249601.

It is an arithmetic number, because the mean of its divisors is an integer number (128214660).

Almost surely, 2^998724498 is an apocalyptic number.

998724498 is an abundant number, since it is smaller than the sum of its proper divisors (1052710062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998724498 is a wasteful number, since it uses less digits than its factorization.

998724498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498801.

The product of its digits is 10450944, while the sum is 60.

The square root of 998724498 is about 31602.6027092706. The cubic root of 998724498 is about 999.5746517712.

The spelling of 998724498 in words is "nine hundred ninety-eight million, seven hundred twenty-four thousand, four hundred ninety-eight".