99636871 has 8 divisors (see below), whose sum is σ = 100397088. Its totient is φ = 98880000.

The previous prime is 99636853. The next prime is 99636907. The reversal of 99636871 is 17863699.

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

It is a cyclic number.

It is not a de Polignac number, because 99636871 - 2⁷ = 99636743 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 (99636811) 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, 96126 + ... + 97156.

It is an arithmetic number, because the mean of its divisors is an integer number (12549636).

Almost surely, 2^99636871 is an apocalyptic number.

99636871 is a deficient number, since it is larger than the sum of its proper divisors (760217).

99636871 is a wasteful number, since it uses less digits than its factorization.

99636871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673.

The product of its digits is 489888, while the sum is 49.

The square root of 99636871 is about 9981.8270371711. The cubic root of 99636871 is about 463.5963700907.

The spelling of 99636871 in words is "ninety-nine million, six hundred thirty-six thousand, eight hundred seventy-one".