99696779 has 8 divisors (see below), whose sum is σ = 122703840. Its totient is φ = 78880896.

The previous prime is 99696761. The next prime is 99696799. The reversal of 99696779 is 97769699.

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 99696779 - 2¹⁶ = 99631243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99696799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547694 + ... + 547875.

It is an arithmetic number, because the mean of its divisors is an integer number (15337980).

Almost surely, 2^99696779 is an apocalyptic number.

99696779 is a deficient number, since it is larger than the sum of its proper divisors (23007061).

99696779 is a wasteful number, since it uses less digits than its factorization.

99696779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095589.

The product of its digits is 11573604, while the sum is 62.

The square root of 99696779 is about 9984.8274396707. The cubic root of 99696779 is about 463.6892659789.

The spelling of 99696779 in words is "ninety-nine million, six hundred ninety-six thousand, seven hundred seventy-nine".