20859341 has 2 divisors, whose sum is σ = 20859342. Its totient is φ = 20859340.

The previous prime is 20859331. The next prime is 20859361. The reversal of 20859341 is 14395802.

20859341 = 3229² + 3230².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 10426441 = 3230^2 + 3229^2 .

It is a cyclic number.

It is not a de Polignac number, because 20859341 - 2¹⁰ = 20858317 is a prime.

It is a super-2 number, since 2×20859341² = 870224213908562, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20859298 and 20859307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20859331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10429670 + 10429671.

It is an arithmetic number, because the mean of its divisors is an integer number (10429671).

Almost surely, 2^20859341 is an apocalyptic number.

20859341 is the 3230-th centered square number.

It is an amenable number.

20859341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20859341 is an equidigital number, since it uses as much as digits as its factorization.

20859341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 20859341 is about 4567.2027544220. The cubic root of 20859341 is about 275.2750570256.

The spelling of 20859341 in words is "twenty million, eight hundred fifty-nine thousand, three hundred forty-one".