987498 has 16 divisors (see below), whose sum is σ = 2194560. Its totient is φ = 329148.

The previous prime is 987491. The next prime is 987509. The reversal of 987498 is 894789.

987498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

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 987498.

It is not an unprimeable number, because it can be changed into a prime (987491) 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, 9090 + ... + 9197.

It is an arithmetic number, because the mean of its divisors is an integer number (137160).

2⁹⁸⁷⁴⁹⁸ is an apocalyptic number.

987498 is an abundant number, since it is smaller than the sum of its proper divisors (1207062).

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

987498 is a wasteful number, since it uses less digits than its factorization.

987498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18298 (or 18292 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 987498 is about 993.7293394079. The cubic root of 987498 is about 99.5815178364.

It can be divided in two parts, 987 and 498, that added together give a triangular number (1485 = T₅₄).

The spelling of 987498 in words is "nine hundred eighty-seven thousand, four hundred ninety-eight".