99518078 has 8 divisors (see below), whose sum is σ = 162847800. Its totient is φ = 45235480.

The previous prime is 99518071. The next prime is 99518087. The reversal of 99518078 is 87081599.

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 (99518071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261753 + ... + 2261796.

It is an arithmetic number, because the mean of its divisors is an integer number (20355975).

Almost surely, 2^99518078 is an apocalyptic number.

99518078 is a deficient number, since it is larger than the sum of its proper divisors (63329722).

99518078 is a wasteful number, since it uses less digits than its factorization.

99518078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523562.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 99518078 is about 9975.8747987332. The cubic root of 99518078 is about 463.4120544378.

The spelling of 99518078 in words is "ninety-nine million, five hundred eighteen thousand, seventy-eight".