99996851 has 4 divisors (see below), whose sum is σ = 100160592. Its totient is φ = 99833112.

The previous prime is 99996833. The next prime is 99996863. The reversal of 99996851 is 15869999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15869999 = 191 ⋅83089.

It is a cyclic number.

It is not a de Polignac number, because 99996851 - 2¹⁸ = 99734707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99996821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80951 + ... + 82176.

It is an arithmetic number, because the mean of its divisors is an integer number (25040148).

Almost surely, 2^99996851 is an apocalyptic number.

99996851 is a deficient number, since it is larger than the sum of its proper divisors (163741).

99996851 is a wasteful number, since it uses less digits than its factorization.

99996851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163740.

The product of its digits is 1574640, while the sum is 56.

The square root of 99996851 is about 9999.8425487605. The cubic root of 99996851 is about 464.1540111891.

The spelling of 99996851 in words is "ninety-nine million, nine hundred ninety-six thousand, eight hundred fifty-one".