989650 has 12 divisors (see below), whose sum is σ = 1840842. Its totient is φ = 395840.

The previous prime is 989647. The next prime is 989663. The reversal of 989650 is 56989.

It can be written as a sum of positive squares in 3 ways, for example, as 859329 + 130321 = 927^2 + 361^2 .

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

It is a congruent number.

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, 9847 + ... + 9946.

2⁹⁸⁹⁶⁵⁰ is an apocalyptic number.

989650 is a deficient number, since it is larger than the sum of its proper divisors (851192).

989650 is a wasteful number, since it uses less digits than its factorization.

989650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19805 (or 19800 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 989650 is about 994.8115399411. The cubic root of 989650 is about 99.6538028585.

The spelling of 989650 in words is "nine hundred eighty-nine thousand, six hundred fifty".