99186047 has 4 divisors (see below), whose sum is σ = 99206016. Its totient is φ = 99166080.

The previous prime is 99186029. The next prime is 99186103. The reversal of 99186047 is 74068199.

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

It is a cyclic number.

It is not a de Polignac number, because 99186047 - 2¹⁴ = 99169663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99185989 and 99186007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99186547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3938 + ... + 14624.

It is an arithmetic number, because the mean of its divisors is an integer number (24801504).

Almost surely, 2^99186047 is an apocalyptic number.

99186047 is a deficient number, since it is larger than the sum of its proper divisors (19969).

99186047 is a wasteful number, since it uses less digits than its factorization.

99186047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19968.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 99186047 is about 9959.2191963025. The cubic root of 99186047 is about 462.8961059486.

The spelling of 99186047 in words is "ninety-nine million, one hundred eighty-six thousand, forty-seven".