989525 has 6 divisors (see below), whose sum is σ = 1227042. Its totient is φ = 791600.

The previous prime is 989507. The next prime is 989533. The reversal of 989525 is 525989.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 111556 + 877969 = 334^2 + 937^2 .

It is not a de Polignac number, because 989525 - 2¹⁰ = 988501 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 989525.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19766 + ... + 19815.

It is an arithmetic number, because the mean of its divisors is an integer number (204507).

2⁹⁸⁹⁵²⁵ is an apocalyptic number.

It is an amenable number.

989525 is a deficient number, since it is larger than the sum of its proper divisors (237517).

989525 is a wasteful number, since it uses less digits than its factorization.

989525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39591 (or 39586 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 989525 is about 994.7487119871. The cubic root of 989525 is about 99.6496070149.

The spelling of 989525 in words is "nine hundred eighty-nine thousand, five hundred twenty-five".