99568081 has 8 divisors (see below), whose sum is σ = 103999104. Its totient is φ = 95145600.

The previous prime is 99568067. The next prime is 99568087. The reversal of 99568081 is 18086599.

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 99568081 - 2⁷ = 99567953 is a prime.

It is a super-2 number, since 2×99568081² = 19827605508045122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99568087) 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, 37756 + ... + 40306.

It is an arithmetic number, because the mean of its divisors is an integer number (12999888).

Almost surely, 2^99568081 is an apocalyptic number.

It is an amenable number.

99568081 is a deficient number, since it is larger than the sum of its proper divisors (4431023).

99568081 is a wasteful number, since it uses less digits than its factorization.

99568081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 99568081 is about 9978.3806802507. The cubic root of 99568081 is about 463.4896554579.

The spelling of 99568081 in words is "ninety-nine million, five hundred sixty-eight thousand, eighty-one".