99994986 has 288 divisors, whose sum is σ = 313709760. Its totient is φ = 23514624.

The previous prime is 99994963. The next prime is 99995011. The reversal of 99994986 is 68949999.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 5262885 + ... + 5262903.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^99994986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99994986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156854880).

99994986 is an abundant number, since it is smaller than the sum of its proper divisors (213714774).

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

99994986 is a wasteful number, since it uses less digits than its factorization.

99994986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 61 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 63.

The square root of 99994986 is about 9999.7492968574. The cubic root of 99994986 is about 464.1511255895.

The spelling of 99994986 in words is "ninety-nine million, nine hundred ninety-four thousand, nine hundred eighty-six".