99707618 has 8 divisors (see below), whose sum is σ = 158359212. Its totient is φ = 46921216.

The previous prime is 99707617. The next prime is 99707623. The reversal of 99707618 is 81670799.

It can be written as a sum of positive squares in 2 ways, for example, as 87478609 + 12229009 = 9353^2 + 3497^2 .

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 (99707617) 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, 1466255 + ... + 1466322.

Almost surely, 2^99707618 is an apocalyptic number.

99707618 is a deficient number, since it is larger than the sum of its proper divisors (58651594).

99707618 is a wasteful number, since it uses less digits than its factorization.

99707618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932596.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 99707618 is about 9985.3701984453. The cubic root of 99707618 is about 463.7060694165.

The spelling of 99707618 in words is "ninety-nine million, seven hundred seven thousand, six hundred eighteen".