20886299 has 10 divisors (see below), whose sum is σ = 24368700. Its totient is φ = 17900484.

The previous prime is 20886289. The next prime is 20886329. The reversal of 20886299 is 99268802.

It is not a de Polignac number, because 20886299 - 2¹² = 20882203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20886209) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1949 + ... + 6750.

It is an arithmetic number, because the mean of its divisors is an integer number (2436870).

Almost surely, 2^20886299 is an apocalyptic number.

20886299 is a deficient number, since it is larger than the sum of its proper divisors (3482401).

20886299 is an frugal number, since it uses more digits than its factorization.

20886299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8727 (or 8706 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 20886299 is about 4570.1530608941. The cubic root of 20886299 is about 275.3935917777.

The spelling of 20886299 in words is "twenty million, eight hundred eighty-six thousand, two hundred ninety-nine".