20827066 has 16 divisors (see below), whose sum is σ = 33957000. Its totient is φ = 9523008.

The previous prime is 20827061. The next prime is 20827067. The reversal of 20827066 is 66072802.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17816841 + 3010225 = 4221^2 + 1735^2 .

It is not an unprimeable number, because it can be changed into a prime (20827061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841 + ... + 6508.

Almost surely, 2^20827066 is an apocalyptic number.

20827066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20827066 is a deficient number, since it is larger than the sum of its proper divisors (13129934).

20827066 is a wasteful number, since it uses less digits than its factorization.

20827066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20827066 is about 4563.6680422660. The cubic root of 20827066 is about 275.1330089356.

Adding to 20827066 its reverse (66072802), we get a palindrome (86899868).

The spelling of 20827066 in words is "twenty million, eight hundred twenty-seven thousand, sixty-six".