99879693 has 8 divisors (see below), whose sum is σ = 133771008. Its totient is φ = 66287424.

The previous prime is 99879691. The next prime is 99879697. The reversal of 99879693 is 39697899.

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

It is not a de Polignac number, because 99879693 - 2¹ = 99879691 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99879691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73980 + ... + 75317.

It is an arithmetic number, because the mean of its divisors is an integer number (16721376).

Almost surely, 2^99879693 is an apocalyptic number.

It is an amenable number.

99879693 is a deficient number, since it is larger than the sum of its proper divisors (33891315).

99879693 is a wasteful number, since it uses less digits than its factorization.

99879693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149523.

The product of its digits is 6613488, while the sum is 60.

The square root of 99879693 is about 9993.9828396891. The cubic root of 99879693 is about 463.9726701228.

The spelling of 99879693 in words is "ninety-nine million, eight hundred seventy-nine thousand, six hundred ninety-three".