99497719 has 4 divisors (see below), whose sum is σ = 105350544. Its totient is φ = 93644896.

The previous prime is 99497711. The next prime is 99497789. The reversal of 99497719 is 91779499.

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 99497719 - 2³ = 99497711 is a prime.

It is a super-2 number, since 2×99497719² = 19799592172405922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99497719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99497711) 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, 2926387 + ... + 2926420.

It is an arithmetic number, because the mean of its divisors is an integer number (26337636).

Almost surely, 2^99497719 is an apocalyptic number.

99497719 is a deficient number, since it is larger than the sum of its proper divisors (5852825).

99497719 is a wasteful number, since it uses less digits than its factorization.

99497719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852824.

The product of its digits is 1285956, while the sum is 55.

The square root of 99497719 is about 9974.8543347760. The cubic root of 99497719 is about 463.3804513038.

The spelling of 99497719 in words is "ninety-nine million, four hundred ninety-seven thousand, seven hundred nineteen".