99443986 has 8 divisors (see below), whose sum is σ = 157016880. Its totient is φ = 47105028.

The previous prime is 99443977. The next prime is 99444011. The reversal of 99443986 is 68934499.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308436 + ... + 1308511.

It is an arithmetic number, because the mean of its divisors is an integer number (19627110).

Almost surely, 2^99443986 is an apocalyptic number.

99443986 is a deficient number, since it is larger than the sum of its proper divisors (57572894).

99443986 is a wasteful number, since it uses less digits than its factorization.

99443986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616968.

The product of its digits is 1679616, while the sum is 52.

The square root of 99443986 is about 9972.1605482463. The cubic root of 99443986 is about 463.2970212328.

The spelling of 99443986 in words is "ninety-nine million, four hundred forty-three thousand, nine hundred eighty-six".