99747 has 6 divisors (see below), whose sum is σ = 144092. Its totient is φ = 66492.

The previous prime is 99733. The next prime is 99761. The reversal of 99747 is 74799.

It is an interprime number because it is at equal distance from previous prime (99733) and next prime (99761).

It is not a de Polignac number, because 99747 - 2¹² = 95651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5533 + ... + 5550.

2⁹⁹⁷⁴⁷ is an apocalyptic number.

99747 is a deficient number, since it is larger than the sum of its proper divisors (44345).

99747 is a wasteful number, since it uses less digits than its factorization.

99747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089 (or 11086 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 99747 is about 315.8274845545. The cubic root of 99747 is about 46.3767112123.

The spelling of 99747 in words is "ninety-nine thousand, seven hundred forty-seven".