99299971 has 4 divisors (see below), whose sum is σ = 101983792. Its totient is φ = 96616152.

The previous prime is 99299957. The next prime is 99299983. The reversal of 99299971 is 17999299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17999299 = 197 ⋅91367.

It is a cyclic number.

It is not a de Polignac number, because 99299971 - 2⁵ = 99299939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99299951) 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, 1341855 + ... + 1341928.

It is an arithmetic number, because the mean of its divisors is an integer number (25495948).

Almost surely, 2^99299971 is an apocalyptic number.

99299971 is a deficient number, since it is larger than the sum of its proper divisors (2683821).

99299971 is a wasteful number, since it uses less digits than its factorization.

99299971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683820.

The product of its digits is 826686, while the sum is 55.

The square root of 99299971 is about 9964.9370795806. The cubic root of 99299971 is about 463.0732639265.

It can be divided in two parts, 9929 and 9971, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 99299971 in words is "ninety-nine million, two hundred ninety-nine thousand, nine hundred seventy-one".