99786885 has 24 divisors (see below), whose sum is σ = 175496160. Its totient is φ = 48380640.

The previous prime is 99786881. The next prime is 99786937. The reversal of 99786885 is 58868799.

It is a happy number.

It is not a de Polignac number, because 99786885 - 2² = 99786881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99786881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25675 + ... + 29304.

It is an arithmetic number, because the mean of its divisors is an integer number (7312340).

Almost surely, 2^99786885 is an apocalyptic number.

It is an amenable number.

99786885 is a deficient number, since it is larger than the sum of its proper divisors (75709275).

99786885 is a wasteful number, since it uses less digits than its factorization.

99786885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55009 (or 54998 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 60.

The square root of 99786885 is about 9989.3385666920. The cubic root of 99786885 is about 463.8289181136.

The spelling of 99786885 in words is "ninety-nine million, seven hundred eighty-six thousand, eight hundred eighty-five".