99021286 has 64 divisors (see below), whose sum is σ = 189665280. Its totient is φ = 37739520.

The previous prime is 99021281. The next prime is 99021301. The reversal of 99021286 is 68212099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99021281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1020790 + ... + 1020886.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^99021286 is an apocalyptic number.

99021286 is a deficient number, since it is larger than the sum of its proper divisors (90643994).

99021286 is a wasteful number, since it uses less digits than its factorization.

99021286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 99021286 is about 9950.9439753221. The cubic root of 99021286 is about 462.6396535658.

The spelling of 99021286 in words is "ninety-nine million, twenty-one thousand, two hundred eighty-six".