99912718 has 8 divisors (see below), whose sum is σ = 149915448. Its totient is φ = 49940904.

The previous prime is 99912671. The next prime is 99912719. The reversal of 99912718 is 81721999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99912719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3780 + ... + 14632.

It is an arithmetic number, because the mean of its divisors is an integer number (18739431).

Almost surely, 2^99912718 is an apocalyptic number.

99912718 is a deficient number, since it is larger than the sum of its proper divisors (50002730).

99912718 is a wasteful number, since it uses less digits than its factorization.

99912718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15458.

The product of its digits is 81648, while the sum is 46.

The square root of 99912718 is about 9995.6349473158. The cubic root of 99912718 is about 464.0238016675.

The spelling of 99912718 in words is "ninety-nine million, nine hundred twelve thousand, seven hundred eighteen".