99994818 has 64 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 25334400.

The previous prime is 99994801. The next prime is 99994819. The reversal of 99994818 is 81849999.

It is a happy number.

It is a super-4 number, since 4×99994818⁴ (a number of 33 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (99994819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16303 + ... + 21581.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^99994818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99994818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127733760).

99994818 is an abundant number, since it is smaller than the sum of its proper divisors (155472702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99994818 is a wasteful number, since it uses less digits than its factorization.

99994818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5343.

The product of its digits is 1679616, while the sum is 57.

The square root of 99994818 is about 9999.7408966433. The cubic root of 99994818 is about 464.1508656517.

The spelling of 99994818 in words is "ninety-nine million, nine hundred ninety-four thousand, eight hundred eighteen".