99647393 has 8 divisors (see below), whose sum is σ = 104328000. Its totient is φ = 95049808.

The previous prime is 99647369. The next prime is 99647399. The reversal of 99647393 is 39374699.

It is a happy number.

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 99647393 - 2⁶ = 99647329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99647399) 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, 18293 + ... + 23106.

It is an arithmetic number, because the mean of its divisors is an integer number (13041000).

Almost surely, 2^99647393 is an apocalyptic number.

It is an amenable number.

99647393 is a deficient number, since it is larger than the sum of its proper divisors (4680607).

99647393 is a wasteful number, since it uses less digits than its factorization.

99647393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41511.

The product of its digits is 1102248, while the sum is 50.

The square root of 99647393 is about 9982.3540810773. The cubic root of 99647393 is about 463.6126886458.

The spelling of 99647393 in words is "ninety-nine million, six hundred forty-seven thousand, three hundred ninety-three".