20832901 has 2 divisors, whose sum is σ = 20832902. Its totient is φ = 20832900.

The previous prime is 20832881. The next prime is 20832937. The reversal of 20832901 is 10923802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19368801 + 1464100 = 4401^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 20832901 - 2⁹ = 20832389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20832971) 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 as a sum of consecutive naturals, namely, 10416450 + 10416451.

It is an arithmetic number, because the mean of its divisors is an integer number (10416451).

Almost surely, 2^20832901 is an apocalyptic number.

It is an amenable number.

20832901 is a deficient number, since it is larger than the sum of its proper divisors (1).

20832901 is an equidigital number, since it uses as much as digits as its factorization.

20832901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20832901 is about 4564.3072858869. The cubic root of 20832901 is about 275.1587006838.

Subtracting from 20832901 its reverse (10923802), we obtain a palindrome (9909099).

The spelling of 20832901 in words is "twenty million, eight hundred thirty-two thousand, nine hundred one".