99727 has 4 divisors (see below), whose sum is σ = 102976. Its totient is φ = 96480.

The previous prime is 99721. The next prime is 99733. The reversal of 99727 is 72799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72799 = 43 ⋅1693.

It is an interprime number because it is at equal distance from previous prime (99721) and next prime (99733).

It is a cyclic number.

It is not a de Polignac number, because 99727 - 2³ = 99719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99692 and 99701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99721) 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, 1578 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (25744).

2⁹⁹⁷²⁷ is an apocalyptic number.

99727 is a deficient number, since it is larger than the sum of its proper divisors (3249).

99727 is a wasteful number, since it uses less digits than its factorization.

99727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248.

The product of its digits is 7938, while the sum is 34.

The square root of 99727 is about 315.7958201117. The cubic root of 99727 is about 46.3736113823.

It can be divided in two parts, 997 and 27, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 99727 in words is "ninety-nine thousand, seven hundred twenty-seven".