99090285 has 32 divisors (see below), whose sum is σ = 182310912. Its totient is φ = 45019200.

The previous prime is 99090281. The next prime is 99090289. The reversal of 99090285 is 58209099.

It is an interprime number because it is at equal distance from previous prime (99090281) and next prime (99090289).

It is not a de Polignac number, because 99090285 - 2² = 99090281 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99090281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14710 + ... + 20360.

It is an arithmetic number, because the mean of its divisors is an integer number (5697216).

Almost surely, 2^99090285 is an apocalyptic number.

It is an amenable number.

99090285 is a deficient number, since it is larger than the sum of its proper divisors (83220627).

99090285 is a wasteful number, since it uses less digits than its factorization.

99090285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5833.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 99090285 is about 9954.4103290953. The cubic root of 99090285 is about 462.7470858940.

The spelling of 99090285 in words is "ninety-nine million, ninety thousand, two hundred eighty-five".