20826601 has 2 divisors, whose sum is σ = 20826602. Its totient is φ = 20826600.

The previous prime is 20826571. The next prime is 20826613. The reversal of 20826601 is 10662802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18071001 + 2755600 = 4251^2 + 1660^2 .

It is a cyclic number.

It is not a de Polignac number, because 20826601 - 2⁷ = 20826473 is a prime.

It is not a weakly prime, because it can be changed into another prime (20886601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10413300 + 10413301.

It is an arithmetic number, because the mean of its divisors is an integer number (10413301).

Almost surely, 2^20826601 is an apocalyptic number.

It is an amenable number.

20826601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20826601 is an equidigital number, since it uses as much as digits as its factorization.

20826601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20826601 is about 4563.6170961201. The cubic root of 20826601 is about 275.1309613148.

The spelling of 20826601 in words is "twenty million, eight hundred twenty-six thousand, six hundred one".