99705218 has 16 divisors (see below), whose sum is σ = 153390336. Its totient is φ = 48580560.

The previous prime is 99705209. The next prime is 99705223. The reversal of 99705218 is 81250799.

It is a super-2 number, since 2×99705218² = 19882260992855048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45455 + ... + 47597.

It is an arithmetic number, because the mean of its divisors is an integer number (9586896).

Almost surely, 2^99705218 is an apocalyptic number.

99705218 is a deficient number, since it is larger than the sum of its proper divisors (53685118).

99705218 is a wasteful number, since it uses less digits than its factorization.

99705218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 99705218 is about 9985.2500219073. The cubic root of 99705218 is about 463.7023488600.

The spelling of 99705218 in words is "ninety-nine million, seven hundred five thousand, two hundred eighteen".