20827086 has 32 divisors (see below), whose sum is σ = 48215040. Its totient is φ = 5874336.

The previous prime is 20827073. The next prime is 20827099. The reversal of 20827086 is 68072802.

It is an interprime number because it is at equal distance from previous prime (20827073) and next prime (20827099).

It is a super-2 number, since 2×20827086² = 867535022502792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180 + ... + 6456.

It is an arithmetic number, because the mean of its divisors is an integer number (1506720).

Almost surely, 2^20827086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20827086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24107520).

20827086 is an abundant number, since it is smaller than the sum of its proper divisors (27387954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20827086 is a wasteful number, since it uses less digits than its factorization.

20827086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 20827086 is about 4563.6702334853. The cubic root of 20827086 is about 275.1330970046.

Adding to 20827086 its reverse (68072802), we get a palindrome (88899888).

The spelling of 20827086 in words is "twenty million, eight hundred twenty-seven thousand, eighty-six".