99701906 has 8 divisors (see below), whose sum is σ = 158350140. Its totient is φ = 46918528.

The previous prime is 99701893. The next prime is 99701929. The reversal of 99701906 is 60910799.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99700225 + 1681 = 9985^2 + 41^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466171 + ... + 1466238.

Almost surely, 2^99701906 is an apocalyptic number.

99701906 is a deficient number, since it is larger than the sum of its proper divisors (58648234).

99701906 is a wasteful number, since it uses less digits than its factorization.

99701906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932428.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 99701906 is about 9985.0841759096. The cubic root of 99701906 is about 463.6972143939.

The spelling of 99701906 in words is "ninety-nine million, seven hundred one thousand, nine hundred six".