99976709 has 24 divisors (see below), whose sum is σ = 119783448. Its totient is φ = 83166720.

The previous prime is 99976703. The next prime is 99976741. The reversal of 99976709 is 90767999.

It can be written as a sum of positive squares in 4 ways, for example, as 35736484 + 64240225 = 5978^2 + 8015^2 .

It is not a de Polignac number, because 99976709 - 2⁸ = 99976453 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 (99976703) 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 23 ways as a sum of consecutive naturals, for example, 355649 + ... + 355929.

It is an arithmetic number, because the mean of its divisors is an integer number (4990977).

Almost surely, 2^99976709 is an apocalyptic number.

It is an amenable number.

99976709 is a deficient number, since it is larger than the sum of its proper divisors (19806739).

99976709 is a wasteful number, since it uses less digits than its factorization.

99976709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1928934, while the sum is 56.

The square root of 99976709 is about 9998.8353821833. The cubic root of 99976709 is about 464.1228448147.

The spelling of 99976709 in words is "ninety-nine million, nine hundred seventy-six thousand, seven hundred nine".