20982801 has 8 divisors (see below), whose sum is σ = 31973824. Its totient is φ = 11990160.

The previous prime is 20982799. The next prime is 20982803. The reversal of 20982801 is 10828902.

It is an interprime number because it is at equal distance from previous prime (20982799) and next prime (20982803).

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

It is not a de Polignac number, because 20982801 - 2¹ = 20982799 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20982803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499570 + ... + 499611.

It is an arithmetic number, because the mean of its divisors is an integer number (3996728).

Almost surely, 2^20982801 is an apocalyptic number.

20982801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20982801 is a deficient number, since it is larger than the sum of its proper divisors (10991023).

20982801 is an equidigital number, since it uses as much as digits as its factorization.

20982801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999191.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 20982801 is about 4580.6987458247. The cubic root of 20982801 is about 275.8170784368.

The spelling of 20982801 in words is "twenty million, nine hundred eighty-two thousand, eight hundred one".