998526 has 24 divisors (see below), whose sum is σ = 2112264. Its totient is φ = 314640.

The previous prime is 998513. The next prime is 998527. The reversal of 998526 is 625899.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998527) by changing a digit.

998526 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1936 + ... + 2396.

It is an arithmetic number, because the mean of its divisors is an integer number (88011).

2⁹⁹⁸⁵²⁶ is an apocalyptic number.

998526 is an abundant number, since it is smaller than the sum of its proper divisors (1113738).

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

998526 is a wasteful number, since it uses less digits than its factorization.

998526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 485 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 998526 is about 999.2627282152. The cubic root of 998526 is about 99.9508425060.

It can be divided in two parts, 9985 and 26, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 998526 in words is "nine hundred ninety-eight thousand, five hundred twenty-six".