196802563 has 2 divisors, whose sum is σ = 196802564. Its totient is φ = 196802562.

The previous prime is 196802561. The next prime is 196802587. The reversal of 196802563 is 365208691.

It is a weak prime.

It is an emirp because it is prime and its reverse (365208691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196802563 - 2¹ = 196802561 is a prime.

Together with 196802561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (196802561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98401281 + 98401282.

It is an arithmetic number, because the mean of its divisors is an integer number (98401282).

Almost surely, 2^196802563 is an apocalyptic number.

196802563 is a deficient number, since it is larger than the sum of its proper divisors (1).

196802563 is an equidigital number, since it uses as much as digits as its factorization.

196802563 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 196802563 is about 14028.6336825794. The cubic root of 196802563 is about 581.6703366006.

The spelling of 196802563 in words is "one hundred ninety-six million, eight hundred two thousand, five hundred sixty-three".