99775885 has 8 divisors (see below), whose sum is σ = 130615776. Its totient is φ = 72564240.

The previous prime is 99775883. The next prime is 99775891. The reversal of 99775885 is 58857799.

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

It is not a de Polignac number, because 99775885 - 2¹ = 99775883 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 (99775883) 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, 906999 + ... + 907108.

It is an arithmetic number, because the mean of its divisors is an integer number (16326972).

Almost surely, 2^99775885 is an apocalyptic number.

It is an amenable number.

99775885 is a deficient number, since it is larger than the sum of its proper divisors (30839891).

99775885 is a wasteful number, since it uses less digits than its factorization.

99775885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814123.

The product of its digits is 6350400, while the sum is 58.

The square root of 99775885 is about 9988.7879645130. The cubic root of 99775885 is about 463.8118741049.

The spelling of 99775885 in words is "ninety-nine million, seven hundred seventy-five thousand, eight hundred eighty-five".