99650 has 12 divisors (see below), whose sum is σ = 185442. Its totient is φ = 39840.

The previous prime is 99643. The next prime is 99661. The reversal of 99650 is 5699.

It can be written as a sum of positive squares in 3 ways, for example, as 83521 + 16129 = 289^2 + 127^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is an unprimeable number.

99650 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 5 ways as a sum of consecutive naturals, for example, 947 + ... + 1046.

2⁹⁹⁶⁵⁰ is an apocalyptic number.

99650 is a deficient number, since it is larger than the sum of its proper divisors (85792).

99650 is a wasteful number, since it uses less digits than its factorization.

99650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 99650 is about 315.6738823533. The cubic root of 99650 is about 46.3616731661.

The spelling of 99650 in words is "ninety-nine thousand, six hundred fifty".