99045775 has 24 divisors (see below), whose sum is σ = 127563264. Its totient is φ = 76207200.

The previous prime is 99045773. The next prime is 99045811. The reversal of 99045775 is 57754099.

It is a happy number.

99045775 is a nontrivial binomial coefficient, being equal to C(14075, 2).

It is not a de Polignac number, because 99045775 - 2¹ = 99045773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99045773) 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, 175644 + ... + 176206.

It is an arithmetic number, because the mean of its divisors is an integer number (5315136).

Almost surely, 2^99045775 is an apocalyptic number.

99045775 is the 14074-th triangular number.

99045775 is the 4692-nd centered nonagonal number.

99045775 is a deficient number, since it is larger than the sum of its proper divisors (28517489).

99045775 is a wasteful number, since it uses less digits than its factorization.

With its successor (99045776) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (831).

99045775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 99045775 is about 9952.1743855300. The cubic root of 99045775 is about 462.6777889644.

The spelling of 99045775 in words is "ninety-nine million, forty-five thousand, seven hundred seventy-five".