99686227 has 4 divisors (see below), whose sum is σ = 100568520. Its totient is φ = 98803936.

The previous prime is 99686207. The next prime is 99686231. The reversal of 99686227 is 72268699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99686227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99686207) 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, 440977 + ... + 441202.

It is an arithmetic number, because the mean of its divisors is an integer number (25142130).

Almost surely, 2^99686227 is an apocalyptic number.

99686227 is a deficient number, since it is larger than the sum of its proper divisors (882293).

99686227 is a wasteful number, since it uses less digits than its factorization.

99686227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882292.

The product of its digits is 653184, while the sum is 49.

The square root of 99686227 is about 9984.2990239676. The cubic root of 99686227 is about 463.6729063003.

The spelling of 99686227 in words is "ninety-nine million, six hundred eighty-six thousand, two hundred twenty-seven".