99866026 has 16 divisors (see below), whose sum is σ = 162220968. Its totient is φ = 45835200.

The previous prime is 99866021. The next prime is 99866027. The reversal of 99866026 is 62066899.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65044225 + 34821801 = 8065^2 + 5901^2 .

It is not an unprimeable number, because it can be changed into a prime (99866021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5905 + ... + 15316.

Almost surely, 2^99866026 is an apocalyptic number.

99866026 is a deficient number, since it is larger than the sum of its proper divisors (62354942).

99866026 is a wasteful number, since it uses less digits than its factorization.

99866026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21417.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 99866026 is about 9993.2990548667. The cubic root of 99866026 is about 463.9515066493.

The spelling of 99866026 in words is "ninety-nine million, eight hundred sixty-six thousand, twenty-six".