20959483 has 2 divisors, whose sum is σ = 20959484. Its totient is φ = 20959482.

The previous prime is 20959459. The next prime is 20959511. The reversal of 20959483 is 38495902.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20959483 - 2¹³ = 20951291 is a prime.

It is not a weakly prime, because it can be changed into another prime (20959403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10479741 + 10479742.

It is an arithmetic number, because the mean of its divisors is an integer number (10479742).

Almost surely, 2^20959483 is an apocalyptic number.

20959483 is a deficient number, since it is larger than the sum of its proper divisors (1).

20959483 is an equidigital number, since it uses as much as digits as its factorization.

20959483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 20959483 is about 4578.1527934310. The cubic root of 20959483 is about 275.7148695446.

The spelling of 20959483 in words is "twenty million, nine hundred fifty-nine thousand, four hundred eighty-three".