99021586 has 16 divisors (see below), whose sum is σ = 149796864. Its totient is φ = 49091584.

The previous prime is 99021569. The next prime is 99021613. The reversal of 99021586 is 68512099.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196611 + ... + 197113.

It is an arithmetic number, because the mean of its divisors is an integer number (9362304).

Almost surely, 2^99021586 is an apocalyptic number.

99021586 is a deficient number, since it is larger than the sum of its proper divisors (50775278).

99021586 is a wasteful number, since it uses less digits than its factorization.

99021586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 99021586 is about 9950.9590492575. The cubic root of 99021586 is about 462.6401207777.

The spelling of 99021586 in words is "ninety-nine million, twenty-one thousand, five hundred eighty-six".