99999893 has 8 divisors (see below), whose sum is σ = 117972480. Its totient is φ = 82949040.

The previous prime is 99999847. The next prime is 99999931. The reversal of 99999893 is 39899999.

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 99999893 - 2¹⁰ = 99998869 is a prime.

It is a super-2 number, since 2×99999893² = 19999957200022898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99990893) 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, 230198 + ... + 230631.

It is an arithmetic number, because the mean of its divisors is an integer number (14746560).

Almost surely, 2^99999893 is an apocalyptic number.

It is an amenable number.

99999893 is a deficient number, since it is larger than the sum of its proper divisors (17972587).

99999893 is a wasteful number, since it uses less digits than its factorization.

99999893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460867.

The product of its digits is 12754584, while the sum is 65.

The square root of 99999893 is about 9999.9946499986. The cubic root of 99999893 is about 464.1587178112.

The spelling of 99999893 in words is "ninety-nine million, nine hundred ninety-nine thousand, eight hundred ninety-three".