99911393 has 8 divisors (see below), whose sum is σ = 100900800. Its totient is φ = 98926128.

The previous prime is 99911389. The next prime is 99911417. The reversal of 99911393 is 39311999.

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 99911393 - 2² = 99911389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99911353) 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, 69203 + ... + 70631.

It is an arithmetic number, because the mean of its divisors is an integer number (12612600).

Almost surely, 2^99911393 is an apocalyptic number.

It is an amenable number.

99911393 is a deficient number, since it is larger than the sum of its proper divisors (989407).

99911393 is a wasteful number, since it uses less digits than its factorization.

99911393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071.

The product of its digits is 59049, while the sum is 44.

The square root of 99911393 is about 9995.5686681649. The cubic root of 99911393 is about 464.0217504296.

The spelling of 99911393 in words is "ninety-nine million, nine hundred eleven thousand, three hundred ninety-three".