99701871 has 8 divisors (see below), whose sum is σ = 134618880. Its totient is φ = 65626392.

The previous prime is 99701869. The next prime is 99701893. The reversal of 99701871 is 17810799.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99701871 - 2¹ = 99701869 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99701801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210105 + ... + 210578.

It is an arithmetic number, because the mean of its divisors is an integer number (16827360).

Almost surely, 2^99701871 is an apocalyptic number.

99701871 is a deficient number, since it is larger than the sum of its proper divisors (34917009).

99701871 is a wasteful number, since it uses less digits than its factorization.

99701871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420765.

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 99701871 is about 9985.0824232953. The cubic root of 99701871 is about 463.6971601341.

The spelling of 99701871 in words is "ninety-nine million, seven hundred one thousand, eight hundred seventy-one".