99994209 has 8 divisors (see below), whose sum is σ = 152372160. Its totient is φ = 57139536.

The previous prime is 99994201. The next prime is 99994211. The reversal of 99994209 is 90249999.

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

It is not a de Polignac number, because 99994209 - 2³ = 99994201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99994201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380794 + ... + 2380835.

It is an arithmetic number, because the mean of its divisors is an integer number (19046520).

Almost surely, 2^99994209 is an apocalyptic number.

It is an amenable number.

99994209 is a deficient number, since it is larger than the sum of its proper divisors (52377951).

99994209 is a wasteful number, since it uses less digits than its factorization.

99994209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761639.

The product of its (nonzero) digits is 472392, while the sum is 51.

The square root of 99994209 is about 9999.7104458079. The cubic root of 99994209 is about 464.1499233747.

The spelling of 99994209 in words is "ninety-nine million, nine hundred ninety-four thousand, two hundred nine".