99768529 has 8 divisors (see below), whose sum is σ = 120728448. Its totient is φ = 80485440.

The previous prime is 99768527. The next prime is 99768577. The reversal of 99768529 is 92586799.

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

It is not a de Polignac number, because 99768529 - 2¹ = 99768527 is a prime.

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 99768529.

It is not an unprimeable number, because it can be changed into a prime (99768521) 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, 419077 + ... + 419314.

It is an arithmetic number, because the mean of its divisors is an integer number (15091056).

Almost surely, 2^99768529 is an apocalyptic number.

It is an amenable number.

99768529 is a deficient number, since it is larger than the sum of its proper divisors (20959919).

99768529 is a wasteful number, since it uses less digits than its factorization.

99768529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838415.

The product of its digits is 2449440, while the sum is 55.

The square root of 99768529 is about 9988.4197448846. The cubic root of 99768529 is about 463.8004756126.

The spelling of 99768529 in words is "ninety-nine million, seven hundred sixty-eight thousand, five hundred twenty-nine".