989750 has 32 divisors (see below), whose sum is σ = 1920672. Its totient is φ = 381600.

The previous prime is 989749. The next prime is 989753. The reversal of 989750 is 57989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989753) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9197 + ... + 9303.

It is an arithmetic number, because the mean of its divisors is an integer number (60021).

2⁹⁸⁹⁷⁵⁰ is an apocalyptic number.

989750 is a deficient number, since it is larger than the sum of its proper divisors (930922).

989750 is a wasteful number, since it uses less digits than its factorization.

989750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 151 counting only the distinct ones).

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

The square root of 989750 is about 994.8617994475. The cubic root of 989750 is about 99.6571592790.

The spelling of 989750 in words is "nine hundred eighty-nine thousand, seven hundred fifty".