99727671 has 8 divisors (see below), whose sum is σ = 133061760. Its totient is φ = 66439352.

The previous prime is 99727633. The next prime is 99727681. The reversal of 99727671 is 17672799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99727671 - 2²³ = 91339063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99727671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99727631) 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, 5985 + ... + 15338.

It is an arithmetic number, because the mean of its divisors is an integer number (16632720).

Almost surely, 2^99727671 is an apocalyptic number.

99727671 is a deficient number, since it is larger than the sum of its proper divisors (33334089).

99727671 is a wasteful number, since it uses less digits than its factorization.

99727671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22885.

The product of its digits is 333396, while the sum is 48.

The square root of 99727671 is about 9986.3742669700. The cubic root of 99727671 is about 463.7371538836.

The spelling of 99727671 in words is "ninety-nine million, seven hundred twenty-seven thousand, six hundred seventy-one".