20826886 has 8 divisors (see below), whose sum is σ = 31267944. Its totient is φ = 10404240.

The previous prime is 20826881. The next prime is 20826889. The reversal of 20826886 is 68862802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20826881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300 + ... + 6583.

It is an arithmetic number, because the mean of its divisors is an integer number (3908493).

Almost surely, 2^20826886 is an apocalyptic number.

20826886 is a deficient number, since it is larger than the sum of its proper divisors (10441058).

20826886 is a wasteful number, since it uses less digits than its factorization.

20826886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 20826886 is about 4563.6483212447. The cubic root of 20826886 is about 275.1322163118.

It can be divided in two parts, 20826 and 886, that added together give a palindrome (21712).

The spelling of 20826886 in words is "twenty million, eight hundred twenty-six thousand, eight hundred eighty-six".