99387 has 12 divisors (see below), whose sum is σ = 149240. Its totient is φ = 66096.

The previous prime is 99377. The next prime is 99391. The reversal of 99387 is 78399.

It is not a de Polignac number, because 99387 - 2⁴ = 99371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39 + ... + 447.

2⁹⁹³⁸⁷ is an apocalyptic number.

99387 is a deficient number, since it is larger than the sum of its proper divisors (49853).

99387 is an equidigital number, since it uses as much as digits as its factorization.

99387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 412 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 99387 is about 315.2570379865. The cubic root of 99387 is about 46.3208507455.

The spelling of 99387 in words is "ninety-nine thousand, three hundred eighty-seven".