99685765 has 8 divisors (see below), whose sum is σ = 120250368. Its totient is φ = 79330320.

The previous prime is 99685759. The next prime is 99685771. The reversal of 99685765 is 56758699.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99685759) and next prime (99685771).

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

It is not a de Polignac number, because 99685765 - 2³ = 99685757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 51237 + ... + 53146.

It is an arithmetic number, because the mean of its divisors is an integer number (15031296).

Almost surely, 2^99685765 is an apocalyptic number.

It is an amenable number.

99685765 is a deficient number, since it is larger than the sum of its proper divisors (20564603).

99685765 is a wasteful number, since it uses less digits than its factorization.

99685765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104579.

The product of its digits is 4082400, while the sum is 55.

The square root of 99685765 is about 9984.2758876145. The cubic root of 99685765 is about 463.6721899954.

The spelling of 99685765 in words is "ninety-nine million, six hundred eighty-five thousand, seven hundred sixty-five".