99719311 has 4 divisors (see below), whose sum is σ = 100015552. Its totient is φ = 99423072.

The previous prime is 99719309. The next prime is 99719317. The reversal of 99719311 is 11391799.

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 99719311 - 2¹ = 99719309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99719317) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147615 + ... + 148288.

It is an arithmetic number, because the mean of its divisors is an integer number (25003888).

Almost surely, 2^99719311 is an apocalyptic number.

99719311 is a deficient number, since it is larger than the sum of its proper divisors (296241).

99719311 is a wasteful number, since it uses less digits than its factorization.

99719311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296240.

The product of its digits is 15309, while the sum is 40.

The square root of 99719311 is about 9985.9556878648. The cubic root of 99719311 is about 463.7241954241.

The spelling of 99719311 in words is "ninety-nine million, seven hundred nineteen thousand, three hundred eleven".