99896887 has 4 divisors (see below), whose sum is σ = 100105920. Its totient is φ = 99687856.

The previous prime is 99896873. The next prime is 99896897. The reversal of 99896887 is 78869899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99896887 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 (99896827) 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, 103798 + ... + 104755.

It is an arithmetic number, because the mean of its divisors is an integer number (25026480).

Almost surely, 2^99896887 is an apocalyptic number.

99896887 is a deficient number, since it is larger than the sum of its proper divisors (209033).

99896887 is a wasteful number, since it uses less digits than its factorization.

99896887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209032.

The product of its digits is 15676416, while the sum is 64.

The square root of 99896887 is about 9994.8430202780. The cubic root of 99896887 is about 463.9992924459. Note that the first 3 decimals are identical.

The spelling of 99896887 in words is "ninety-nine million, eight hundred ninety-six thousand, eight hundred eighty-seven".