99000871 has 4 divisors (see below), whose sum is σ = 99023632. Its totient is φ = 98978112.

The previous prime is 99000857. The next prime is 99000883. The reversal of 99000871 is 17800099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17800099 = 113 ⋅157523.

It is a cyclic number.

It is not a de Polignac number, because 99000871 - 2¹⁹ = 98476583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99000851) 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, 2595 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (24755908).

Almost surely, 2^99000871 is an apocalyptic number.

99000871 is a deficient number, since it is larger than the sum of its proper divisors (22761).

99000871 is a wasteful number, since it uses less digits than its factorization.

99000871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22760.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 99000871 is about 9949.9181403668. The cubic root of 99000871 is about 462.6078575818.

The spelling of 99000871 in words is "ninety-nine million, eight hundred seventy-one", and thus it is an aban number.