20828827 has 2 divisors, whose sum is σ = 20828828. Its totient is φ = 20828826.

The previous prime is 20828803. The next prime is 20828851. The reversal of 20828827 is 72882802.

It is a balanced prime because it is at equal distance from previous prime (20828803) and next prime (20828851).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20828827 is a prime.

It is not a weakly prime, because it can be changed into another prime (20828867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10414413 + 10414414.

It is an arithmetic number, because the mean of its divisors is an integer number (10414414).

Almost surely, 2^20828827 is an apocalyptic number.

20828827 is a deficient number, since it is larger than the sum of its proper divisors (1).

20828827 is an equidigital number, since it uses as much as digits as its factorization.

20828827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 20828827 is about 4563.8609750955. The cubic root of 20828827 is about 275.1407631975.

The spelling of 20828827 in words is "twenty million, eight hundred twenty-eight thousand, eight hundred twenty-seven".