998675520 has 112 divisors (see below), whose sum is σ = 3177283968. Its totient is φ = 265768960.

The previous prime is 998675519. The next prime is 998675521. The reversal of 998675520 is 25576899.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (998675519) and next prime (998675521).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (998675521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 729877 + ... + 731243.

Almost surely, 2^998675520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998675520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588641984).

998675520 is an abundant number, since it is smaller than the sum of its proper divisors (2178608448).

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

998675520 is a wasteful number, since it uses less digits than its factorization.

998675520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The square root of 998675520 is about 31601.8277952399. The cubic root of 998675520 is about 999.5583116068.

The spelling of 998675520 in words is "nine hundred ninety-eight million, six hundred seventy-five thousand, five hundred twenty".