99999706 has 4 divisors (see below), whose sum is σ = 149999562.
Its totient is φ = 49999852.
The previous prime is 99999703. The next prime is 99999721. The reversal of 99999706 is 60799999.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 96727225 + 3272481 = 9835^2 + 1809^2
It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (99999703) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999925 + ... + 24999928.
Almost surely, 299999706 is an apocalyptic number.
99999706 is a deficient number, since it is larger than the sum of its proper divisors (49999856).
99999706 is a wasteful number, since it uses less digits than its factorization.
99999706 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49999855.
The product of its (nonzero) digits is 2480058, while the sum is 58.
The square root of 99999706 is about 9999.9852999892.
The cubic root of 99999706 is about 464.1584284851.
The spelling of 99999706 in words is "ninety-nine million, nine hundred ninety-nine thousand, seven hundred six".