99841906 has 8 divisors (see below), whose sum is σ = 151307100. Its totient is φ = 49406208.

The previous prime is 99841897. The next prime is 99841909. The reversal of 99841906 is 60914899.

It can be written as a sum of positive squares in 2 ways, for example, as 97713225 + 2128681 = 9885^2 + 1459^2 .

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

It is not an unprimeable number, because it can be changed into a prime (99841909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257131 + ... + 257518.

Almost surely, 2^99841906 is an apocalyptic number.

99841906 is a deficient number, since it is larger than the sum of its proper divisors (51465194).

99841906 is a wasteful number, since it uses less digits than its factorization.

99841906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514748.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 99841906 is about 9992.0921733139. The cubic root of 99841906 is about 463.9141518990.

The spelling of 99841906 in words is "ninety-nine million, eight hundred forty-one thousand, nine hundred six".