99123247 has 8 divisors (see below), whose sum is σ = 107938800. Its totient is φ = 90667584.

The previous prime is 99123229. The next prime is 99123253. The reversal of 99123247 is 74232199.

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 99123247 - 2¹¹ = 99121199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99123547) 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, 89398 + ... + 90499.

It is an arithmetic number, because the mean of its divisors is an integer number (13492350).

Almost surely, 2^99123247 is an apocalyptic number.

99123247 is a deficient number, since it is larger than the sum of its proper divisors (8815553).

99123247 is a wasteful number, since it uses less digits than its factorization.

99123247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179945.

The product of its digits is 27216, while the sum is 37.

The square root of 99123247 is about 9956.0658394770. The cubic root of 99123247 is about 462.7983905484.

The spelling of 99123247 in words is "ninety-nine million, one hundred twenty-three thousand, two hundred forty-seven".