99763 has 4 divisors (see below), whose sum is σ = 101320. Its totient is φ = 98208.

The previous prime is 99761. The next prime is 99767. The reversal of 99763 is 36799.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99763 - 2¹ = 99761 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678 + ... + 811.

It is an arithmetic number, because the mean of its divisors is an integer number (25330).

2⁹⁹⁷⁶³ is an apocalyptic number.

99763 is a deficient number, since it is larger than the sum of its proper divisors (1557).

99763 is a wasteful number, since it uses less digits than its factorization.

99763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556.

The product of its digits is 10206, while the sum is 34.

The square root of 99763 is about 315.8528138231. The cubic root of 99763 is about 46.3791907780.

The spelling of 99763 in words is "ninety-nine thousand, seven hundred sixty-three".