998750 has 40 divisors (see below), whose sum is σ = 2024352. Its totient is φ = 368000.

The previous prime is 998749. The next prime is 998759. The reversal of 998750 is 57899.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998750.

It is not an unprimeable number, because it can be changed into a prime (998759) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21227 + ... + 21273.

2⁹⁹⁸⁷⁵⁰ is an apocalyptic number.

998750 is an abundant number, since it is smaller than the sum of its proper divisors (1025602).

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

998750 is a wasteful number, since it uses less digits than its factorization.

998750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 998750 is about 999.3748045653. The cubic root of 998750 is about 99.9583159602.

The spelling of 998750 in words is "nine hundred ninety-eight thousand, seven hundred fifty".