99818627 has 4 divisors (see below), whose sum is σ = 99842496. Its totient is φ = 99794760.

The previous prime is 99818623. The next prime is 99818629. The reversal of 99818627 is 72681899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72681899 = 941 ⋅77239.

It is a cyclic number.

It is not a de Polignac number, because 99818627 - 2² = 99818623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99818623) 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, 3824 + ... + 14637.

It is an arithmetic number, because the mean of its divisors is an integer number (24960624).

Almost surely, 2^99818627 is an apocalyptic number.

99818627 is a deficient number, since it is larger than the sum of its proper divisors (23869).

99818627 is a wasteful number, since it uses less digits than its factorization.

99818627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23868.

The product of its digits is 435456, while the sum is 50.

The square root of 99818627 is about 9990.9272342461. The cubic root of 99818627 is about 463.8780939035.

The spelling of 99818627 in words is "ninety-nine million, eight hundred eighteen thousand, six hundred twenty-seven".